Assignment - Diversity in Living Organisms Class 9 Notes | EduRev

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Class 9 : Assignment - Diversity in Living Organisms Class 9 Notes | EduRev

 Page 1


1
GOYAL BROTHERS PRAKASHAN
 1. There are more than a million kinds of living 
things exhibiting an infinite variety in form, 
structure and living places.
	 2.	 Classification puts things in order.
 3. The use of important distinguishing features 
forms the basis of classification.
 4. The process of grouping similar things into 
groups and categories on the basis of similarities 
and dissimilarities is called classification.
 5. The system of classification was devised by 
Car olus	 Linnaeus.
 6. The naming of organisms is called nomencla-
tur e.
 7. The science of classification is called 
taxonomy .
 8. Carolus Linnaeus is called the f a t h e r 	 o f	
t axonomy .
	 9.	 Species	 is a group of organisms capable of 
interbreeding to produce fertile offspring.
	 10.	 Genus	is a group of similar and closely related 
species.
	 1 1.	 Binomial	 name	 has two parts — genus and 
species.
 12. The names given to living organisms following the 
binomial system are called scientific 	 names.
 13. The genus name begins with a capital letter, 
the species name begins with a small letter.
	 14.	 R.H.	 Whittaker 	 was the first one to propose 
a five-kingdom classification in 1969.
	 15.	 M o n e r a , 	 P r o t i s t a , 	 F u n g i , 	 P l a n t a e 	 and 
Animalia 	 are included in five–kingdom 
classification.
 16. Kingdom Plantae is divided into two 
subkingdoms — Cr ypt og am ae 	 and 
Phaner ogamae.
 17. The simplest 	 plants belong to the division 
Thallophyta.
	 18.	 Lichen	is a symbiotic association of algae and 
fungi.
 19. Plants belonging to bryophyta are called 
amphibians	of the plant kingdom.
 20. Bacteria are often called “fission plants” as 
they multiply by binary fission.
 21. Biologists have identified, named, classified 
and described more than a million types of 
animals inhabiting the earth.
 22. Animals differ in their structure ranging from 
single celled to multicellular animal.
 23. All animals are eukaryotic organisms.
 24. Most animals have a high level of tissue 
differentiation.
 25. Animal nutrition is heter otr ophic.
 26. Animal cells lack cell wall.
 27. Animals possess the power 	 of 	 locomotion.
 28. Two main criteria, used to classify animals 
are :
 (i) presence or absence of vertebral column.
 (ii) cellular organisation.
 29. The first group of animals is i n v e r t e b r a t e s 	 —	
animals without backbone.
 30. The second group of animals is v e r t e b r a t e s	
— 	 animals having backbone or vertebral 
column.
 31. Based on the cellular organisation, animals can 
be divided into — pr otozoa 	and metazoa.
 32. Protozoa represent the one-celled animals/
unicellular animals, e.g., Amoeba, Paramecium, 
Euglena, Trypanosoma.
 33. Metazoa represents the many-celled animals/
multicellular animals, e.g., Hydra, earthworm, 
corals, flatworms, insects, frogs, etc.
 34. The phyla, in order of their increasing 
complexity beginning from the simple single-
celled form to complex form are like these 
— protozoa, porifera, cnidaria, platyhelminthes, 
nematoda, annelida, arthropoda, mollusca, 
echinodermata, hemichordata and chordata.
	 35.	 Symmetrical body shape means the parts of an 
animal body are arranged in such a way that it 
can be cut into two similar halves by one or 
more planes.
	 36.	 Germ 	 layers 	 are the primary layers of cells 
which differentiate in the animal embryo.
 37. Phylum 	 pr otoz oa includes minute, microscopic, 
eukaryotic organisms, e.g., Amoeba, Euglena, 
Trypanosoma.
IMPORTANT NOTES
 7 Diversity in Living Organisms
Assignments in Science Class IX (Term II)
Page 2


1
GOYAL BROTHERS PRAKASHAN
 1. There are more than a million kinds of living 
things exhibiting an infinite variety in form, 
structure and living places.
	 2.	 Classification puts things in order.
 3. The use of important distinguishing features 
forms the basis of classification.
 4. The process of grouping similar things into 
groups and categories on the basis of similarities 
and dissimilarities is called classification.
 5. The system of classification was devised by 
Car olus	 Linnaeus.
 6. The naming of organisms is called nomencla-
tur e.
 7. The science of classification is called 
taxonomy .
 8. Carolus Linnaeus is called the f a t h e r 	 o f	
t axonomy .
	 9.	 Species	 is a group of organisms capable of 
interbreeding to produce fertile offspring.
	 10.	 Genus	is a group of similar and closely related 
species.
	 1 1.	 Binomial	 name	 has two parts — genus and 
species.
 12. The names given to living organisms following the 
binomial system are called scientific 	 names.
 13. The genus name begins with a capital letter, 
the species name begins with a small letter.
	 14.	 R.H.	 Whittaker 	 was the first one to propose 
a five-kingdom classification in 1969.
	 15.	 M o n e r a , 	 P r o t i s t a , 	 F u n g i , 	 P l a n t a e 	 and 
Animalia 	 are included in five–kingdom 
classification.
 16. Kingdom Plantae is divided into two 
subkingdoms — Cr ypt og am ae 	 and 
Phaner ogamae.
 17. The simplest 	 plants belong to the division 
Thallophyta.
	 18.	 Lichen	is a symbiotic association of algae and 
fungi.
 19. Plants belonging to bryophyta are called 
amphibians	of the plant kingdom.
 20. Bacteria are often called “fission plants” as 
they multiply by binary fission.
 21. Biologists have identified, named, classified 
and described more than a million types of 
animals inhabiting the earth.
 22. Animals differ in their structure ranging from 
single celled to multicellular animal.
 23. All animals are eukaryotic organisms.
 24. Most animals have a high level of tissue 
differentiation.
 25. Animal nutrition is heter otr ophic.
 26. Animal cells lack cell wall.
 27. Animals possess the power 	 of 	 locomotion.
 28. Two main criteria, used to classify animals 
are :
 (i) presence or absence of vertebral column.
 (ii) cellular organisation.
 29. The first group of animals is i n v e r t e b r a t e s 	 —	
animals without backbone.
 30. The second group of animals is v e r t e b r a t e s	
— 	 animals having backbone or vertebral 
column.
 31. Based on the cellular organisation, animals can 
be divided into — pr otozoa 	and metazoa.
 32. Protozoa represent the one-celled animals/
unicellular animals, e.g., Amoeba, Paramecium, 
Euglena, Trypanosoma.
 33. Metazoa represents the many-celled animals/
multicellular animals, e.g., Hydra, earthworm, 
corals, flatworms, insects, frogs, etc.
 34. The phyla, in order of their increasing 
complexity beginning from the simple single-
celled form to complex form are like these 
— protozoa, porifera, cnidaria, platyhelminthes, 
nematoda, annelida, arthropoda, mollusca, 
echinodermata, hemichordata and chordata.
	 35.	 Symmetrical body shape means the parts of an 
animal body are arranged in such a way that it 
can be cut into two similar halves by one or 
more planes.
	 36.	 Germ 	 layers 	 are the primary layers of cells 
which differentiate in the animal embryo.
 37. Phylum 	 pr otoz oa includes minute, microscopic, 
eukaryotic organisms, e.g., Amoeba, Euglena, 
Trypanosoma.
IMPORTANT NOTES
 7 Diversity in Living Organisms
Assignments in Science Class IX (Term II)
2
GOYAL BROTHERS PRAKASHAN
 38. Phylum po r i f e r a 	 includes mostly sessile or 
stationary sea animals, having porous body 
e.g. Sycon, Leucosolenia, etc.
 39. Phylum coelenterata 	 includes radially 
symmetri- cal, multicellular, aquatic animals, 
e.g., Hydra, Obelia, etc.
 40. Phylum platyhelminthes includes bilaterally 
symmetrical, triploblastic, mostly parasitic 
animals. e.g., liver fluke, blood fluke, 
tapeworm.
 41. Phylum nematoda 	 includes mostly parasitic 
animals having narrow, elongated, cylindrical 
unsegmented body. e.g. roundworm, pinworm, 
filarial worm, etc.
 42. Phylum annelida	includes free living coelomic 
animals having metameric segmentation, e.g., 
earthworm, sea-mouse, etc.
 43. Phylum arthr opoda	are the largest group of 
animals and its main feature is jointed legs 
and body is divided into three regions— 
head, thorax and abdomen. e.g., prawn, crab, 
housefly, mosquito, etc.
 44. Phylum mollusca 	 includes mainly aquatic 
animals having soft, unsegmented body. e.g., 
snail, mussel, cuttlefish.
 45. Phylum echinodermata	includes star-shaped, 
spherical or elongated exclusively marine 
animals, e.g., starfish, brittle star, sea cucumber, 
etc.
 46. Phylum hemichordata	 possess characters of 
both vertebrates and invertebrates, e.g., tongue 
worm, Rhabdopleura.
 47. Phylum	 chordata	 – the animals with vertebral 
column like horse, man etc.
Assignments for summAtive Assessment
I. Very Short AnSwer QueStIonS  (1 Mark)
PReviouS	 YeARS’ 	 QueStionS
 1. (a) A flowering plant whose embryo possesses 
single cotyledon (Give scientific term).
 1. Meena and Hari observed an animal in their 
garden. Hari called it an insect while Meena said 
it was an earthworm. Name the characteristic 
which confirms that it is an insect. 
 2. What is the mode of nutrition in fungi?
 3. What are the divisions of living organisms?
 4. What is the basis of classification of plants?
 5. What is Systema Naturae?
 6. What is a scientific name?
 7. What are the divisions of cryptogamae?
 8. What are the examples of thallophyta?
 9. What are the parts of a scientific name?
 10. Write the scientific names of pea and 
peacock?
 11. What are amphibians of the plant kingdom?
 12. According to the two-kingdom classification, 
what are the main divisions of animals?
 13. What is the basis of classification of animals?
 14. What are invertebrates?
 15. Which animal shows bilateral symmetry?
 16. What type of body symmetry is shown by 
Hydra?
 17. What is pseudocoel?
 18. In which phyla, true body cavities are present?
 (b) A unicellular, eukaryotic aquatic organism 
(Name the kingdom).  [201 1	 (t -ii)]
 1. Which organisms are called primitive? How are 
they different from the advanced organisms ?  
 [201 1	 (t -ii)]
 2. What are the four main characteristics of 
chordates? [201 1	 (t -ii)]
 3. (a) Give one characteristic difference between 
primitive and advanced organisms.
	 	 	 [201 1	 (t -ii)]
 (b) Name the phylum to which the following 
are included.
ii.	 SHoR t 	 AnSWeR	 QueStionS	 -	 i	 (2	 Marks)
PReviouS	 YeARS’ 	 QueStionS
otHeR	 iMPoR t Ant 	 QueStionS
Page 3


1
GOYAL BROTHERS PRAKASHAN
 1. There are more than a million kinds of living 
things exhibiting an infinite variety in form, 
structure and living places.
	 2.	 Classification puts things in order.
 3. The use of important distinguishing features 
forms the basis of classification.
 4. The process of grouping similar things into 
groups and categories on the basis of similarities 
and dissimilarities is called classification.
 5. The system of classification was devised by 
Car olus	 Linnaeus.
 6. The naming of organisms is called nomencla-
tur e.
 7. The science of classification is called 
taxonomy .
 8. Carolus Linnaeus is called the f a t h e r 	 o f	
t axonomy .
	 9.	 Species	 is a group of organisms capable of 
interbreeding to produce fertile offspring.
	 10.	 Genus	is a group of similar and closely related 
species.
	 1 1.	 Binomial	 name	 has two parts — genus and 
species.
 12. The names given to living organisms following the 
binomial system are called scientific 	 names.
 13. The genus name begins with a capital letter, 
the species name begins with a small letter.
	 14.	 R.H.	 Whittaker 	 was the first one to propose 
a five-kingdom classification in 1969.
	 15.	 M o n e r a , 	 P r o t i s t a , 	 F u n g i , 	 P l a n t a e 	 and 
Animalia 	 are included in five–kingdom 
classification.
 16. Kingdom Plantae is divided into two 
subkingdoms — Cr ypt og am ae 	 and 
Phaner ogamae.
 17. The simplest 	 plants belong to the division 
Thallophyta.
	 18.	 Lichen	is a symbiotic association of algae and 
fungi.
 19. Plants belonging to bryophyta are called 
amphibians	of the plant kingdom.
 20. Bacteria are often called “fission plants” as 
they multiply by binary fission.
 21. Biologists have identified, named, classified 
and described more than a million types of 
animals inhabiting the earth.
 22. Animals differ in their structure ranging from 
single celled to multicellular animal.
 23. All animals are eukaryotic organisms.
 24. Most animals have a high level of tissue 
differentiation.
 25. Animal nutrition is heter otr ophic.
 26. Animal cells lack cell wall.
 27. Animals possess the power 	 of 	 locomotion.
 28. Two main criteria, used to classify animals 
are :
 (i) presence or absence of vertebral column.
 (ii) cellular organisation.
 29. The first group of animals is i n v e r t e b r a t e s 	 —	
animals without backbone.
 30. The second group of animals is v e r t e b r a t e s	
— 	 animals having backbone or vertebral 
column.
 31. Based on the cellular organisation, animals can 
be divided into — pr otozoa 	and metazoa.
 32. Protozoa represent the one-celled animals/
unicellular animals, e.g., Amoeba, Paramecium, 
Euglena, Trypanosoma.
 33. Metazoa represents the many-celled animals/
multicellular animals, e.g., Hydra, earthworm, 
corals, flatworms, insects, frogs, etc.
 34. The phyla, in order of their increasing 
complexity beginning from the simple single-
celled form to complex form are like these 
— protozoa, porifera, cnidaria, platyhelminthes, 
nematoda, annelida, arthropoda, mollusca, 
echinodermata, hemichordata and chordata.
	 35.	 Symmetrical body shape means the parts of an 
animal body are arranged in such a way that it 
can be cut into two similar halves by one or 
more planes.
	 36.	 Germ 	 layers 	 are the primary layers of cells 
which differentiate in the animal embryo.
 37. Phylum 	 pr otoz oa includes minute, microscopic, 
eukaryotic organisms, e.g., Amoeba, Euglena, 
Trypanosoma.
IMPORTANT NOTES
 7 Diversity in Living Organisms
Assignments in Science Class IX (Term II)
2
GOYAL BROTHERS PRAKASHAN
 38. Phylum po r i f e r a 	 includes mostly sessile or 
stationary sea animals, having porous body 
e.g. Sycon, Leucosolenia, etc.
 39. Phylum coelenterata 	 includes radially 
symmetri- cal, multicellular, aquatic animals, 
e.g., Hydra, Obelia, etc.
 40. Phylum platyhelminthes includes bilaterally 
symmetrical, triploblastic, mostly parasitic 
animals. e.g., liver fluke, blood fluke, 
tapeworm.
 41. Phylum nematoda 	 includes mostly parasitic 
animals having narrow, elongated, cylindrical 
unsegmented body. e.g. roundworm, pinworm, 
filarial worm, etc.
 42. Phylum annelida	includes free living coelomic 
animals having metameric segmentation, e.g., 
earthworm, sea-mouse, etc.
 43. Phylum arthr opoda	are the largest group of 
animals and its main feature is jointed legs 
and body is divided into three regions— 
head, thorax and abdomen. e.g., prawn, crab, 
housefly, mosquito, etc.
 44. Phylum mollusca 	 includes mainly aquatic 
animals having soft, unsegmented body. e.g., 
snail, mussel, cuttlefish.
 45. Phylum echinodermata	includes star-shaped, 
spherical or elongated exclusively marine 
animals, e.g., starfish, brittle star, sea cucumber, 
etc.
 46. Phylum hemichordata	 possess characters of 
both vertebrates and invertebrates, e.g., tongue 
worm, Rhabdopleura.
 47. Phylum	 chordata	 – the animals with vertebral 
column like horse, man etc.
Assignments for summAtive Assessment
I. Very Short AnSwer QueStIonS  (1 Mark)
PReviouS	 YeARS’ 	 QueStionS
 1. (a) A flowering plant whose embryo possesses 
single cotyledon (Give scientific term).
 1. Meena and Hari observed an animal in their 
garden. Hari called it an insect while Meena said 
it was an earthworm. Name the characteristic 
which confirms that it is an insect. 
 2. What is the mode of nutrition in fungi?
 3. What are the divisions of living organisms?
 4. What is the basis of classification of plants?
 5. What is Systema Naturae?
 6. What is a scientific name?
 7. What are the divisions of cryptogamae?
 8. What are the examples of thallophyta?
 9. What are the parts of a scientific name?
 10. Write the scientific names of pea and 
peacock?
 11. What are amphibians of the plant kingdom?
 12. According to the two-kingdom classification, 
what are the main divisions of animals?
 13. What is the basis of classification of animals?
 14. What are invertebrates?
 15. Which animal shows bilateral symmetry?
 16. What type of body symmetry is shown by 
Hydra?
 17. What is pseudocoel?
 18. In which phyla, true body cavities are present?
 (b) A unicellular, eukaryotic aquatic organism 
(Name the kingdom).  [201 1	 (t -ii)]
 1. Which organisms are called primitive? How are 
they different from the advanced organisms ?  
 [201 1	 (t -ii)]
 2. What are the four main characteristics of 
chordates? [201 1	 (t -ii)]
 3. (a) Give one characteristic difference between 
primitive and advanced organisms.
	 	 	 [201 1	 (t -ii)]
 (b) Name the phylum to which the following 
are included.
ii.	 SHoR t 	 AnSWeR	 QueStionS	 -	 i	 (2	 Marks)
PReviouS	 YeARS’ 	 QueStionS
otHeR	 iMPoR t Ant 	 QueStionS
3
GOYAL BROTHERS PRAKASHAN
 (i) Spider  (ii)  Cockroach
 (iii) Prawn  (iv) Housefly
 4. (i) Write one main characteristic feature 
that differentiates gymnosperms from 
angiosperms.
 (ii) Give one example of each of a gymnosperm 
and an angiosperm.   [201 1	 (t -ii)]
 5. (i) Identify the class of animals having the 
following characteristic features.
 (a) The warm blooded animals that lay eggs 
and have four chambered heart and a 
covering of feathers.
 (b) The cold blooded animals having scales 
and they breathe through lungs.
 (ii) Give one example of an animal belonging 
to each of these classes. [201 1	 (t -ii)]
 6. In the hierarchy of classification, which grouping 
will have the smallest number of organisms with 
maximum characteristics in common and which 
will have the largest number of organisms?
	 	 	 [201 1	 (t -ii)]
 7. Characteristics of some organisms are given. 
Identify their group and give one example of 
each.
 (a) Single celled, eukaryotic and photosynthetic
 (b) The body is divided into segments, may be 
unisexual or hermaphrodite. [201 1	 (t -ii)]
 8. (a) List two features which differentiate chordates 
from non-chordates.
 (b) In which phylum will you place the organisms 
which have
 (i) calcareous spines on their body?
 (ii) the presence of holes or pores all over 
the body? [201 1	 (t -ii)]
 9. How do the saprophytes get their food? Give 
two examples of a saprophyte. [201 1	 (t -ii)]
 10. List the major divisions in kingdom plantae. 
Write the characteristic features of any one of 
them. [201 1	 (t -ii)]
 11. Explain Binomial Nomenclature? Name the scientist 
who has given it. Write its advantage ?
	 	 	 [201 1	 (t -ii)]
 12. List the conventions used for writing a scientific 
name. What is the importance of scientific 
names? [201 1	 (t -ii)]
 13. (a) How many chambers do the heart of fish, 
amphibians and mammals have? 
 (b) Name the classes of vertebrates which lay 
eggs with shells.   [201 1	 (t -ii)]
 14. Why bryophytes are called the amphibians of 
the plant kingdom? [201 1	 (t -ii)]
 15. Some reptiles live in water and yet lay eggs with 
tough covering unlike the amphibians. Why?
	 	 	 [201 1	 (t -ii)]
 16. How are fungi (i) similar and (ii) dissimilar to 
plants? [201 1	 (t -ii)]
 17. How do thallophytes and pteridophytes differ 
from each other? Write two differences. 
	 	 	 [201 1	 (t -ii)]
 18. (a) Name the phylum to which the following 
are included spider, cockroach, prawn, house 
fly.
 (b) What is biodiversity?  [201 1	 (t -ii)]
 19. (a) List any three important features of 
vertebrates.
 (b) Name one reptile.   [201 1	 (t -ii)]
 20. Write two peculiar characters of sponges?  
 [201 1	 (t -ii)]
 21. Why are bats not placed in birds (Two Points)?
	 	 	 [201 1	 (t -ii)]
 22. (a) What are saprophytes? [201 1	 (t -ii)]
 (b) Name the kingdom to which they belong.
 (c) What is the cell wall of fungi made up of?
 23. (a) Identify the class of following organism 
having following features :
 (i) Slimy skin and three chambered heart.
 (ii) Covering of feather and four chambered 
heart.
 (b) List two important characteristics of phylum 
Nematoda.   [201 1	 (t -ii)]
 24. What is notochord? Mention its function.
	 	 	 [201 1	 (t -ii)]
 25. Write the main features of Fungus plants.
	 	 	 [201 1	 (t -ii)]
 26. Enlist four main features of organisms placed 
in protista. [201 1	 (t -ii)]
 27. Give four main features of phylum coelente-
rata. [201 1	 (t -ii)]
 28. What is binomial nomenclature? Who introduced 
it? [201 1	 (t -ii)]
 29. (a) What are the two adaptive features of 
birds ? [201 1	 (t -ii)]
 (b) What is the scientific name of ostrich?
 30. Why is there a need for classification and 
Page 4


1
GOYAL BROTHERS PRAKASHAN
 1. There are more than a million kinds of living 
things exhibiting an infinite variety in form, 
structure and living places.
	 2.	 Classification puts things in order.
 3. The use of important distinguishing features 
forms the basis of classification.
 4. The process of grouping similar things into 
groups and categories on the basis of similarities 
and dissimilarities is called classification.
 5. The system of classification was devised by 
Car olus	 Linnaeus.
 6. The naming of organisms is called nomencla-
tur e.
 7. The science of classification is called 
taxonomy .
 8. Carolus Linnaeus is called the f a t h e r 	 o f	
t axonomy .
	 9.	 Species	 is a group of organisms capable of 
interbreeding to produce fertile offspring.
	 10.	 Genus	is a group of similar and closely related 
species.
	 1 1.	 Binomial	 name	 has two parts — genus and 
species.
 12. The names given to living organisms following the 
binomial system are called scientific 	 names.
 13. The genus name begins with a capital letter, 
the species name begins with a small letter.
	 14.	 R.H.	 Whittaker 	 was the first one to propose 
a five-kingdom classification in 1969.
	 15.	 M o n e r a , 	 P r o t i s t a , 	 F u n g i , 	 P l a n t a e 	 and 
Animalia 	 are included in five–kingdom 
classification.
 16. Kingdom Plantae is divided into two 
subkingdoms — Cr ypt og am ae 	 and 
Phaner ogamae.
 17. The simplest 	 plants belong to the division 
Thallophyta.
	 18.	 Lichen	is a symbiotic association of algae and 
fungi.
 19. Plants belonging to bryophyta are called 
amphibians	of the plant kingdom.
 20. Bacteria are often called “fission plants” as 
they multiply by binary fission.
 21. Biologists have identified, named, classified 
and described more than a million types of 
animals inhabiting the earth.
 22. Animals differ in their structure ranging from 
single celled to multicellular animal.
 23. All animals are eukaryotic organisms.
 24. Most animals have a high level of tissue 
differentiation.
 25. Animal nutrition is heter otr ophic.
 26. Animal cells lack cell wall.
 27. Animals possess the power 	 of 	 locomotion.
 28. Two main criteria, used to classify animals 
are :
 (i) presence or absence of vertebral column.
 (ii) cellular organisation.
 29. The first group of animals is i n v e r t e b r a t e s 	 —	
animals without backbone.
 30. The second group of animals is v e r t e b r a t e s	
— 	 animals having backbone or vertebral 
column.
 31. Based on the cellular organisation, animals can 
be divided into — pr otozoa 	and metazoa.
 32. Protozoa represent the one-celled animals/
unicellular animals, e.g., Amoeba, Paramecium, 
Euglena, Trypanosoma.
 33. Metazoa represents the many-celled animals/
multicellular animals, e.g., Hydra, earthworm, 
corals, flatworms, insects, frogs, etc.
 34. The phyla, in order of their increasing 
complexity beginning from the simple single-
celled form to complex form are like these 
— protozoa, porifera, cnidaria, platyhelminthes, 
nematoda, annelida, arthropoda, mollusca, 
echinodermata, hemichordata and chordata.
	 35.	 Symmetrical body shape means the parts of an 
animal body are arranged in such a way that it 
can be cut into two similar halves by one or 
more planes.
	 36.	 Germ 	 layers 	 are the primary layers of cells 
which differentiate in the animal embryo.
 37. Phylum 	 pr otoz oa includes minute, microscopic, 
eukaryotic organisms, e.g., Amoeba, Euglena, 
Trypanosoma.
IMPORTANT NOTES
 7 Diversity in Living Organisms
Assignments in Science Class IX (Term II)
2
GOYAL BROTHERS PRAKASHAN
 38. Phylum po r i f e r a 	 includes mostly sessile or 
stationary sea animals, having porous body 
e.g. Sycon, Leucosolenia, etc.
 39. Phylum coelenterata 	 includes radially 
symmetri- cal, multicellular, aquatic animals, 
e.g., Hydra, Obelia, etc.
 40. Phylum platyhelminthes includes bilaterally 
symmetrical, triploblastic, mostly parasitic 
animals. e.g., liver fluke, blood fluke, 
tapeworm.
 41. Phylum nematoda 	 includes mostly parasitic 
animals having narrow, elongated, cylindrical 
unsegmented body. e.g. roundworm, pinworm, 
filarial worm, etc.
 42. Phylum annelida	includes free living coelomic 
animals having metameric segmentation, e.g., 
earthworm, sea-mouse, etc.
 43. Phylum arthr opoda	are the largest group of 
animals and its main feature is jointed legs 
and body is divided into three regions— 
head, thorax and abdomen. e.g., prawn, crab, 
housefly, mosquito, etc.
 44. Phylum mollusca 	 includes mainly aquatic 
animals having soft, unsegmented body. e.g., 
snail, mussel, cuttlefish.
 45. Phylum echinodermata	includes star-shaped, 
spherical or elongated exclusively marine 
animals, e.g., starfish, brittle star, sea cucumber, 
etc.
 46. Phylum hemichordata	 possess characters of 
both vertebrates and invertebrates, e.g., tongue 
worm, Rhabdopleura.
 47. Phylum	 chordata	 – the animals with vertebral 
column like horse, man etc.
Assignments for summAtive Assessment
I. Very Short AnSwer QueStIonS  (1 Mark)
PReviouS	 YeARS’ 	 QueStionS
 1. (a) A flowering plant whose embryo possesses 
single cotyledon (Give scientific term).
 1. Meena and Hari observed an animal in their 
garden. Hari called it an insect while Meena said 
it was an earthworm. Name the characteristic 
which confirms that it is an insect. 
 2. What is the mode of nutrition in fungi?
 3. What are the divisions of living organisms?
 4. What is the basis of classification of plants?
 5. What is Systema Naturae?
 6. What is a scientific name?
 7. What are the divisions of cryptogamae?
 8. What are the examples of thallophyta?
 9. What are the parts of a scientific name?
 10. Write the scientific names of pea and 
peacock?
 11. What are amphibians of the plant kingdom?
 12. According to the two-kingdom classification, 
what are the main divisions of animals?
 13. What is the basis of classification of animals?
 14. What are invertebrates?
 15. Which animal shows bilateral symmetry?
 16. What type of body symmetry is shown by 
Hydra?
 17. What is pseudocoel?
 18. In which phyla, true body cavities are present?
 (b) A unicellular, eukaryotic aquatic organism 
(Name the kingdom).  [201 1	 (t -ii)]
 1. Which organisms are called primitive? How are 
they different from the advanced organisms ?  
 [201 1	 (t -ii)]
 2. What are the four main characteristics of 
chordates? [201 1	 (t -ii)]
 3. (a) Give one characteristic difference between 
primitive and advanced organisms.
	 	 	 [201 1	 (t -ii)]
 (b) Name the phylum to which the following 
are included.
ii.	 SHoR t 	 AnSWeR	 QueStionS	 -	 i	 (2	 Marks)
PReviouS	 YeARS’ 	 QueStionS
otHeR	 iMPoR t Ant 	 QueStionS
3
GOYAL BROTHERS PRAKASHAN
 (i) Spider  (ii)  Cockroach
 (iii) Prawn  (iv) Housefly
 4. (i) Write one main characteristic feature 
that differentiates gymnosperms from 
angiosperms.
 (ii) Give one example of each of a gymnosperm 
and an angiosperm.   [201 1	 (t -ii)]
 5. (i) Identify the class of animals having the 
following characteristic features.
 (a) The warm blooded animals that lay eggs 
and have four chambered heart and a 
covering of feathers.
 (b) The cold blooded animals having scales 
and they breathe through lungs.
 (ii) Give one example of an animal belonging 
to each of these classes. [201 1	 (t -ii)]
 6. In the hierarchy of classification, which grouping 
will have the smallest number of organisms with 
maximum characteristics in common and which 
will have the largest number of organisms?
	 	 	 [201 1	 (t -ii)]
 7. Characteristics of some organisms are given. 
Identify their group and give one example of 
each.
 (a) Single celled, eukaryotic and photosynthetic
 (b) The body is divided into segments, may be 
unisexual or hermaphrodite. [201 1	 (t -ii)]
 8. (a) List two features which differentiate chordates 
from non-chordates.
 (b) In which phylum will you place the organisms 
which have
 (i) calcareous spines on their body?
 (ii) the presence of holes or pores all over 
the body? [201 1	 (t -ii)]
 9. How do the saprophytes get their food? Give 
two examples of a saprophyte. [201 1	 (t -ii)]
 10. List the major divisions in kingdom plantae. 
Write the characteristic features of any one of 
them. [201 1	 (t -ii)]
 11. Explain Binomial Nomenclature? Name the scientist 
who has given it. Write its advantage ?
	 	 	 [201 1	 (t -ii)]
 12. List the conventions used for writing a scientific 
name. What is the importance of scientific 
names? [201 1	 (t -ii)]
 13. (a) How many chambers do the heart of fish, 
amphibians and mammals have? 
 (b) Name the classes of vertebrates which lay 
eggs with shells.   [201 1	 (t -ii)]
 14. Why bryophytes are called the amphibians of 
the plant kingdom? [201 1	 (t -ii)]
 15. Some reptiles live in water and yet lay eggs with 
tough covering unlike the amphibians. Why?
	 	 	 [201 1	 (t -ii)]
 16. How are fungi (i) similar and (ii) dissimilar to 
plants? [201 1	 (t -ii)]
 17. How do thallophytes and pteridophytes differ 
from each other? Write two differences. 
	 	 	 [201 1	 (t -ii)]
 18. (a) Name the phylum to which the following 
are included spider, cockroach, prawn, house 
fly.
 (b) What is biodiversity?  [201 1	 (t -ii)]
 19. (a) List any three important features of 
vertebrates.
 (b) Name one reptile.   [201 1	 (t -ii)]
 20. Write two peculiar characters of sponges?  
 [201 1	 (t -ii)]
 21. Why are bats not placed in birds (Two Points)?
	 	 	 [201 1	 (t -ii)]
 22. (a) What are saprophytes? [201 1	 (t -ii)]
 (b) Name the kingdom to which they belong.
 (c) What is the cell wall of fungi made up of?
 23. (a) Identify the class of following organism 
having following features :
 (i) Slimy skin and three chambered heart.
 (ii) Covering of feather and four chambered 
heart.
 (b) List two important characteristics of phylum 
Nematoda.   [201 1	 (t -ii)]
 24. What is notochord? Mention its function.
	 	 	 [201 1	 (t -ii)]
 25. Write the main features of Fungus plants.
	 	 	 [201 1	 (t -ii)]
 26. Enlist four main features of organisms placed 
in protista. [201 1	 (t -ii)]
 27. Give four main features of phylum coelente-
rata. [201 1	 (t -ii)]
 28. What is binomial nomenclature? Who introduced 
it? [201 1	 (t -ii)]
 29. (a) What are the two adaptive features of 
birds ? [201 1	 (t -ii)]
 (b) What is the scientific name of ostrich?
 30. Why is there a need for classification and 
4
GOYAL BROTHERS PRAKASHAN
systematic naming of living organisms?
	 	 	 [201 1	 (t -ii)]
 31. How do reptiles differ from amphibians?
	 	 	 [201 1	 (t -ii)]
 32. (a) Define cryptogams? [201 1	 (t -ii)]
 (b) Name the division of plant kingdom having 
amphibian plants.
 33. Bats can fly still they are placed in mammal. 
Why? [201 1	 (t -ii)]
 34. Give reasons for each of the following.
	 	 	 [201 1	 (t -ii)]
 (a) "Blue-green algae is placed in Monera and 
not in plantae"
 (b) "Bryophytes and Pteridophytes grow in moist 
and shady places".
 35. (a) Write any two important features that are 
present in all chordates. [201 1	 (t -ii)]
 (b) Mention one difference between triploblastic 
and diploblastic animals.
 36. List the four conventions that are followed while 
writing the scientific names of an organism?  
 [201 1	 (t -ii)]
 37. Give two differences between bony fish and 
cartilaginous fish. Give one example of each.
	 	 	 [201 1	 (t -ii)]
 38. (a) Give a difference between lizards and 
snakes. [201 1	 (t -ii)]
 (b) Name the type of nutrition in fungi.
 39. Thallophyta, bryophyta and pteridophyta are 
classified as cryptogamae whereas gymnosperms 
and angiosperms are classified as phanerogamae, 
why? [201 1	 (t -ii)]
 40. How can we say that sea horse is a fish while 
jelly fish is not a fish but a coelenterate? 
 [201 1	 (t -ii)]
 41. (i) Which group of plants is known as 'flowering 
plants'?
 (ii) On the basis of seed how a maize plant is 
different from a pea plant? [201 1	 (t -ii)]
 42. Give any two reasons why mosses are found in 
moist and humid places. [201 1	 (t -ii)]
 43. Write the names of the parts as A, B, C and D 
given in the figure in your answer book. 
	 	 	 [201 1	 (t -ii)]
A
D
C
B
 44. What are gymnosperms? Give two characteris-
tics. [201 1	 (t -ii)]
 45. (a) State two characteristic features of nematode.
 (b) Identify the phylum with the help of following 
features :
 (i) Spiny - Skinned, radial symmetrical and 
have tube feet.
 (ii) Triploblastic, worm - like, having 
segmented body.  [201 1	 (t -ii)]
 46. Write conventions followed while writing the 
scientific names? [201 1	 (t -ii)]
 47. Give reasons for the following :
 (a) Blue green algae are classified with bacteria 
and placed in kingdom Monera.
 (b) Bryophytes are called amphibians of plant 
kingdom.   [201 1	 (t -ii)]
 48. Who proposed the five kingdom classification? 
What is the basis of this classification?
	 	 	 [201 1	 (t -ii)]
 49.  Label X and Y in the given diagram of hydra.
	 	 	 [201 1	 (t -ii)]
X
Y
Page 5


1
GOYAL BROTHERS PRAKASHAN
 1. There are more than a million kinds of living 
things exhibiting an infinite variety in form, 
structure and living places.
	 2.	 Classification puts things in order.
 3. The use of important distinguishing features 
forms the basis of classification.
 4. The process of grouping similar things into 
groups and categories on the basis of similarities 
and dissimilarities is called classification.
 5. The system of classification was devised by 
Car olus	 Linnaeus.
 6. The naming of organisms is called nomencla-
tur e.
 7. The science of classification is called 
taxonomy .
 8. Carolus Linnaeus is called the f a t h e r 	 o f	
t axonomy .
	 9.	 Species	 is a group of organisms capable of 
interbreeding to produce fertile offspring.
	 10.	 Genus	is a group of similar and closely related 
species.
	 1 1.	 Binomial	 name	 has two parts — genus and 
species.
 12. The names given to living organisms following the 
binomial system are called scientific 	 names.
 13. The genus name begins with a capital letter, 
the species name begins with a small letter.
	 14.	 R.H.	 Whittaker 	 was the first one to propose 
a five-kingdom classification in 1969.
	 15.	 M o n e r a , 	 P r o t i s t a , 	 F u n g i , 	 P l a n t a e 	 and 
Animalia 	 are included in five–kingdom 
classification.
 16. Kingdom Plantae is divided into two 
subkingdoms — Cr ypt og am ae 	 and 
Phaner ogamae.
 17. The simplest 	 plants belong to the division 
Thallophyta.
	 18.	 Lichen	is a symbiotic association of algae and 
fungi.
 19. Plants belonging to bryophyta are called 
amphibians	of the plant kingdom.
 20. Bacteria are often called “fission plants” as 
they multiply by binary fission.
 21. Biologists have identified, named, classified 
and described more than a million types of 
animals inhabiting the earth.
 22. Animals differ in their structure ranging from 
single celled to multicellular animal.
 23. All animals are eukaryotic organisms.
 24. Most animals have a high level of tissue 
differentiation.
 25. Animal nutrition is heter otr ophic.
 26. Animal cells lack cell wall.
 27. Animals possess the power 	 of 	 locomotion.
 28. Two main criteria, used to classify animals 
are :
 (i) presence or absence of vertebral column.
 (ii) cellular organisation.
 29. The first group of animals is i n v e r t e b r a t e s 	 —	
animals without backbone.
 30. The second group of animals is v e r t e b r a t e s	
— 	 animals having backbone or vertebral 
column.
 31. Based on the cellular organisation, animals can 
be divided into — pr otozoa 	and metazoa.
 32. Protozoa represent the one-celled animals/
unicellular animals, e.g., Amoeba, Paramecium, 
Euglena, Trypanosoma.
 33. Metazoa represents the many-celled animals/
multicellular animals, e.g., Hydra, earthworm, 
corals, flatworms, insects, frogs, etc.
 34. The phyla, in order of their increasing 
complexity beginning from the simple single-
celled form to complex form are like these 
— protozoa, porifera, cnidaria, platyhelminthes, 
nematoda, annelida, arthropoda, mollusca, 
echinodermata, hemichordata and chordata.
	 35.	 Symmetrical body shape means the parts of an 
animal body are arranged in such a way that it 
can be cut into two similar halves by one or 
more planes.
	 36.	 Germ 	 layers 	 are the primary layers of cells 
which differentiate in the animal embryo.
 37. Phylum 	 pr otoz oa includes minute, microscopic, 
eukaryotic organisms, e.g., Amoeba, Euglena, 
Trypanosoma.
IMPORTANT NOTES
 7 Diversity in Living Organisms
Assignments in Science Class IX (Term II)
2
GOYAL BROTHERS PRAKASHAN
 38. Phylum po r i f e r a 	 includes mostly sessile or 
stationary sea animals, having porous body 
e.g. Sycon, Leucosolenia, etc.
 39. Phylum coelenterata 	 includes radially 
symmetri- cal, multicellular, aquatic animals, 
e.g., Hydra, Obelia, etc.
 40. Phylum platyhelminthes includes bilaterally 
symmetrical, triploblastic, mostly parasitic 
animals. e.g., liver fluke, blood fluke, 
tapeworm.
 41. Phylum nematoda 	 includes mostly parasitic 
animals having narrow, elongated, cylindrical 
unsegmented body. e.g. roundworm, pinworm, 
filarial worm, etc.
 42. Phylum annelida	includes free living coelomic 
animals having metameric segmentation, e.g., 
earthworm, sea-mouse, etc.
 43. Phylum arthr opoda	are the largest group of 
animals and its main feature is jointed legs 
and body is divided into three regions— 
head, thorax and abdomen. e.g., prawn, crab, 
housefly, mosquito, etc.
 44. Phylum mollusca 	 includes mainly aquatic 
animals having soft, unsegmented body. e.g., 
snail, mussel, cuttlefish.
 45. Phylum echinodermata	includes star-shaped, 
spherical or elongated exclusively marine 
animals, e.g., starfish, brittle star, sea cucumber, 
etc.
 46. Phylum hemichordata	 possess characters of 
both vertebrates and invertebrates, e.g., tongue 
worm, Rhabdopleura.
 47. Phylum	 chordata	 – the animals with vertebral 
column like horse, man etc.
Assignments for summAtive Assessment
I. Very Short AnSwer QueStIonS  (1 Mark)
PReviouS	 YeARS’ 	 QueStionS
 1. (a) A flowering plant whose embryo possesses 
single cotyledon (Give scientific term).
 1. Meena and Hari observed an animal in their 
garden. Hari called it an insect while Meena said 
it was an earthworm. Name the characteristic 
which confirms that it is an insect. 
 2. What is the mode of nutrition in fungi?
 3. What are the divisions of living organisms?
 4. What is the basis of classification of plants?
 5. What is Systema Naturae?
 6. What is a scientific name?
 7. What are the divisions of cryptogamae?
 8. What are the examples of thallophyta?
 9. What are the parts of a scientific name?
 10. Write the scientific names of pea and 
peacock?
 11. What are amphibians of the plant kingdom?
 12. According to the two-kingdom classification, 
what are the main divisions of animals?
 13. What is the basis of classification of animals?
 14. What are invertebrates?
 15. Which animal shows bilateral symmetry?
 16. What type of body symmetry is shown by 
Hydra?
 17. What is pseudocoel?
 18. In which phyla, true body cavities are present?
 (b) A unicellular, eukaryotic aquatic organism 
(Name the kingdom).  [201 1	 (t -ii)]
 1. Which organisms are called primitive? How are 
they different from the advanced organisms ?  
 [201 1	 (t -ii)]
 2. What are the four main characteristics of 
chordates? [201 1	 (t -ii)]
 3. (a) Give one characteristic difference between 
primitive and advanced organisms.
	 	 	 [201 1	 (t -ii)]
 (b) Name the phylum to which the following 
are included.
ii.	 SHoR t 	 AnSWeR	 QueStionS	 -	 i	 (2	 Marks)
PReviouS	 YeARS’ 	 QueStionS
otHeR	 iMPoR t Ant 	 QueStionS
3
GOYAL BROTHERS PRAKASHAN
 (i) Spider  (ii)  Cockroach
 (iii) Prawn  (iv) Housefly
 4. (i) Write one main characteristic feature 
that differentiates gymnosperms from 
angiosperms.
 (ii) Give one example of each of a gymnosperm 
and an angiosperm.   [201 1	 (t -ii)]
 5. (i) Identify the class of animals having the 
following characteristic features.
 (a) The warm blooded animals that lay eggs 
and have four chambered heart and a 
covering of feathers.
 (b) The cold blooded animals having scales 
and they breathe through lungs.
 (ii) Give one example of an animal belonging 
to each of these classes. [201 1	 (t -ii)]
 6. In the hierarchy of classification, which grouping 
will have the smallest number of organisms with 
maximum characteristics in common and which 
will have the largest number of organisms?
	 	 	 [201 1	 (t -ii)]
 7. Characteristics of some organisms are given. 
Identify their group and give one example of 
each.
 (a) Single celled, eukaryotic and photosynthetic
 (b) The body is divided into segments, may be 
unisexual or hermaphrodite. [201 1	 (t -ii)]
 8. (a) List two features which differentiate chordates 
from non-chordates.
 (b) In which phylum will you place the organisms 
which have
 (i) calcareous spines on their body?
 (ii) the presence of holes or pores all over 
the body? [201 1	 (t -ii)]
 9. How do the saprophytes get their food? Give 
two examples of a saprophyte. [201 1	 (t -ii)]
 10. List the major divisions in kingdom plantae. 
Write the characteristic features of any one of 
them. [201 1	 (t -ii)]
 11. Explain Binomial Nomenclature? Name the scientist 
who has given it. Write its advantage ?
	 	 	 [201 1	 (t -ii)]
 12. List the conventions used for writing a scientific 
name. What is the importance of scientific 
names? [201 1	 (t -ii)]
 13. (a) How many chambers do the heart of fish, 
amphibians and mammals have? 
 (b) Name the classes of vertebrates which lay 
eggs with shells.   [201 1	 (t -ii)]
 14. Why bryophytes are called the amphibians of 
the plant kingdom? [201 1	 (t -ii)]
 15. Some reptiles live in water and yet lay eggs with 
tough covering unlike the amphibians. Why?
	 	 	 [201 1	 (t -ii)]
 16. How are fungi (i) similar and (ii) dissimilar to 
plants? [201 1	 (t -ii)]
 17. How do thallophytes and pteridophytes differ 
from each other? Write two differences. 
	 	 	 [201 1	 (t -ii)]
 18. (a) Name the phylum to which the following 
are included spider, cockroach, prawn, house 
fly.
 (b) What is biodiversity?  [201 1	 (t -ii)]
 19. (a) List any three important features of 
vertebrates.
 (b) Name one reptile.   [201 1	 (t -ii)]
 20. Write two peculiar characters of sponges?  
 [201 1	 (t -ii)]
 21. Why are bats not placed in birds (Two Points)?
	 	 	 [201 1	 (t -ii)]
 22. (a) What are saprophytes? [201 1	 (t -ii)]
 (b) Name the kingdom to which they belong.
 (c) What is the cell wall of fungi made up of?
 23. (a) Identify the class of following organism 
having following features :
 (i) Slimy skin and three chambered heart.
 (ii) Covering of feather and four chambered 
heart.
 (b) List two important characteristics of phylum 
Nematoda.   [201 1	 (t -ii)]
 24. What is notochord? Mention its function.
	 	 	 [201 1	 (t -ii)]
 25. Write the main features of Fungus plants.
	 	 	 [201 1	 (t -ii)]
 26. Enlist four main features of organisms placed 
in protista. [201 1	 (t -ii)]
 27. Give four main features of phylum coelente-
rata. [201 1	 (t -ii)]
 28. What is binomial nomenclature? Who introduced 
it? [201 1	 (t -ii)]
 29. (a) What are the two adaptive features of 
birds ? [201 1	 (t -ii)]
 (b) What is the scientific name of ostrich?
 30. Why is there a need for classification and 
4
GOYAL BROTHERS PRAKASHAN
systematic naming of living organisms?
	 	 	 [201 1	 (t -ii)]
 31. How do reptiles differ from amphibians?
	 	 	 [201 1	 (t -ii)]
 32. (a) Define cryptogams? [201 1	 (t -ii)]
 (b) Name the division of plant kingdom having 
amphibian plants.
 33. Bats can fly still they are placed in mammal. 
Why? [201 1	 (t -ii)]
 34. Give reasons for each of the following.
	 	 	 [201 1	 (t -ii)]
 (a) "Blue-green algae is placed in Monera and 
not in plantae"
 (b) "Bryophytes and Pteridophytes grow in moist 
and shady places".
 35. (a) Write any two important features that are 
present in all chordates. [201 1	 (t -ii)]
 (b) Mention one difference between triploblastic 
and diploblastic animals.
 36. List the four conventions that are followed while 
writing the scientific names of an organism?  
 [201 1	 (t -ii)]
 37. Give two differences between bony fish and 
cartilaginous fish. Give one example of each.
	 	 	 [201 1	 (t -ii)]
 38. (a) Give a difference between lizards and 
snakes. [201 1	 (t -ii)]
 (b) Name the type of nutrition in fungi.
 39. Thallophyta, bryophyta and pteridophyta are 
classified as cryptogamae whereas gymnosperms 
and angiosperms are classified as phanerogamae, 
why? [201 1	 (t -ii)]
 40. How can we say that sea horse is a fish while 
jelly fish is not a fish but a coelenterate? 
 [201 1	 (t -ii)]
 41. (i) Which group of plants is known as 'flowering 
plants'?
 (ii) On the basis of seed how a maize plant is 
different from a pea plant? [201 1	 (t -ii)]
 42. Give any two reasons why mosses are found in 
moist and humid places. [201 1	 (t -ii)]
 43. Write the names of the parts as A, B, C and D 
given in the figure in your answer book. 
	 	 	 [201 1	 (t -ii)]
A
D
C
B
 44. What are gymnosperms? Give two characteris-
tics. [201 1	 (t -ii)]
 45. (a) State two characteristic features of nematode.
 (b) Identify the phylum with the help of following 
features :
 (i) Spiny - Skinned, radial symmetrical and 
have tube feet.
 (ii) Triploblastic, worm - like, having 
segmented body.  [201 1	 (t -ii)]
 46. Write conventions followed while writing the 
scientific names? [201 1	 (t -ii)]
 47. Give reasons for the following :
 (a) Blue green algae are classified with bacteria 
and placed in kingdom Monera.
 (b) Bryophytes are called amphibians of plant 
kingdom.   [201 1	 (t -ii)]
 48. Who proposed the five kingdom classification? 
What is the basis of this classification?
	 	 	 [201 1	 (t -ii)]
 49.  Label X and Y in the given diagram of hydra.
	 	 	 [201 1	 (t -ii)]
X
Y
5
GOYAL BROTHERS PRAKASHAN
 50. Give one example of each :
 (a) Reptile which has a four chambered heart.
 (b) Egg - laying mammal.
 (c) Parasitic Platyhelminthes
 (d) Division among plants which has the simplest 
organisms.   [201 1	 (t -ii)]
 51. Identify the phylum for the following characteris-
tics given :
 (a) Organisms with joint appendages.
 (b) Organisms are generally flatworms
 (c) Body is segmented
 (d) Skin of organisms is full of spikes
	 	 	 [201 1	 (t -ii)]
 52. Write any two characteristics of class mammalia. 
Name one egg laying mammal. [201 1	 (t -ii)]
 1. Answer the following questions :
 (i) Who is known as the ‘Father of Taxonomy’?
 (ii) What is meant by nomenclature?
 2. Write the contribution of Haeckel and Whittaker 
in classification.
 3. Name the group of plants with the following 
characters :
 (a) Plants with seeds
 (b) Plants without roots, stem, leaves or 
flowers
 (c) Plants having seeds with two cotyledons
 (d) Plants visible with naked eye but having no 
chlorophyll
 4. You are provided with the seeds of gram, wheat, 
rice and pumpkin. Classify them whether they 
are monocot or dicot.
 5. Distinguish between bryophyta and pteridophyta.
 6. What are vascular cryptogams?
 7. Write any four differences between dicotyledons 
and monocotyledons.
 8. Name the phylum to which each of the following 
animals belong:
  Seahorse, Silverfish, Jellyfish, Cuttlefish.
 9. Give two characters of bryophytes.
 10. How is classification and evolution interrelated 
with each other?
 4. (i) Draw a neat diagram of Hydra.
	 	 	 [201 1	 (t -ii)]
 (ii) Label mesoglea and gastrovascular cavity.
 (iii) Name the group of animals it belongs to.
 (iv) Name one species of this group that lives in 
colonies.
 5. In the given classification scheme fill in the 
boxes with appropriate plant groups :
   [201 1	 (t -ii)]
 1. List three groups of plants. Which plants are 
referred to as vascular plants? Out of these which 
group is further classified on the basis of number 
of cotyledon? State its two characteristics.  
 [201 1	 (t -ii)]
 2. List in the tabular form any three differences 
between the Aves and the Mammalia group. 
 [201 1	 (t -ii)]
 3. Identify the plant bodies, which are commonly 
named as 'cryptogamae'. State and explain two 
characteristics , which are exhibited by each 
category of these plant bodies. [201 1	 (t -ii)]
iii.	 SHoR t 	 AnSWeR	 QueStionS	 -	 ii	 (3	 Marks)
PReviouS	 YeARS’ 	 QueStionS
otHeR	 iMPoR t Ant 	 QueStionS
Read More
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