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Test: Animal Kingdom - 1


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25 Questions MCQ Test Biology Class 11 | Test: Animal Kingdom - 1

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Test: Animal Kingdom - 1 - Question 1

Which phylum has a coelom and triploblastic animal?

Detailed Solution for Test: Animal Kingdom - 1 - Question 1
  • The body of annelids is segmented. Annelids are triploblastic (three germ layers present) and possess a true coelom.
  • The coelom is the fluid-filled body cavity present between the gut wall and body wall.
  • Some of the examples of annelids are earthworms, leeches, etc.


Fig: Phylum Annelida

Hence, the correct option is B.
NCERT Reference: Page no. 52 of topic “4.2.6 Phylum – Annelida” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 2

Choanocytes are also called as ________

Detailed Solution for Test: Animal Kingdom - 1 - Question 2
  • Choanocytes are also called collar cells.
  • They filter the food materials present in the water that enters the central cavity through minute spores called Ostia.
  • This water leaves the central cavity through an opening called Osculum.

Hence, the correct option is B.

NCERT Reference: Page no. 49 of topic “4.2.1 Phylum – Porifera” of chapter 4.

Test: Animal Kingdom - 1 - Question 3

The limbless amphibian is:

Detailed Solution for Test: Animal Kingdom - 1 - Question 3

Ichthyophis is a species of caecilians; the limbless amphibians usually observed in Southeast Asia, the western Indo-Australian Archipelago, and the southern Philippines.

At first look, this animal seems to be an earthworm. This is the class that has an aquatic larval degree and a mundane grown-up phase.

Identify and select the limless amphibian A Ichthyophis class 11 biology  CBSE

Hence, the correct option is A.

NCERT Reference: Page no. 57 of topic “4.2.11.4 Class – Amphibia” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 4

What is the main excretory organ in insects?

Detailed Solution for Test: Animal Kingdom - 1 - Question 4
  • The insects belong to phylum Arthropoda and hence, the excretory organ is Malphighian tubules.
  • Proboscis gland, gills and excretory pore are not the part of phylum Arthropoda.

Fig: Malphighian tubules

Hence, the correct option is B.
NCERT Reference: Page no. 53 of topic “4.2.7 Phylum – Arthropoda” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 5

In some animal groups, the body is found divided into compartments with serial repetition of at least some organs. This characteristic feature is called:

Detailed Solution for Test: Animal Kingdom - 1 - Question 5

Metamerism: In some animals, the body is externally and internally divided into segments with a serial repetition of at least some organs.

For example, in earthworm, the body shows this pattern called metameric segmentation and the phenomenon is known as metamerism or true segmentation. Metamerism is found in 3 animal phylums - Annelida, Arthropoda and Chordata.


Fig: Metamerism in Earthworm

Hence, the correct option is C.
NCERT Reference: Page no. 48 of topic “4.1.5 Segmentation” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 6

Choose the odd one out based on coelom:

Detailed Solution for Test: Animal Kingdom - 1 - Question 6
  • Animals possessing coelom are called coelomates, e.g.,annelids, molluscs, arthropods, echinoderms, hemichordates and chordates.
  • These are the animals in which there is no cavity present. The most common example is Platyhelminthes known as acoelomates.

Hence, the correct option is D.

NCERT Reference: Page no. 48 of topic “4.1.4 Coelom” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 7

Which one of the following group of animals is correctly matched with its characteristics without any exception?

Detailed Solution for Test: Animal Kingdom - 1 - Question 7

The members of class Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton.

Hence, the correct option is D.
NCERT Reference: Page no. 56 of topic “4.2.11.2 Class – Chondrichthyes” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 8

Air bladder is absent in

Detailed Solution for Test: Animal Kingdom - 1 - Question 8
  • Air bladder provides buoyancy to the aquatic animals thus helps them to stay at the current water depth without having to waste energy in swimming.
  • It is found in many bony fishes but not in cartilaginous fishes. Shark being a cartilaginous fish, does not possess air bladder.

Hence, the correct option is B.
NCERT Reference: Page no. 57 of topic “4.2.11.2 Class – Chondrichthyes” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 9

Which among the following is a gregarious pest?

Detailed Solution for Test: Animal Kingdom - 1 - Question 9
  • Locust (Locusta) is a gregarious pest belonging to the phylum Arthropoda.
  • Whereas economically important insects are – Apis (Honey bee), Bombyx (Silkworm), Laccifer (Lac insect). 


Fig: Image of Locust

Hence, the correct option is A.

NCERT Reference: Page no. 53 of topic “4.2.7 Phylum – Arthropoda” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 10

The larvae of urochordates is called:

Detailed Solution for Test: Animal Kingdom - 1 - Question 10
  • The larvae of urochordates are called tadpole larvae.
  • This larva is free-swimming and exhibits all chordate characteristics.
  • It has a notochord, a dorsal nerve cord, pharyngeal slits and a post-anal tail.

Hence, the correct option is B.

NCERT Reference: Topic “4.2.11 Phylum – Chordata” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 11

In coelenterates, the cell shows:

Detailed Solution for Test: Animal Kingdom - 1 - Question 11
  • In coelenterates, the arrangement of cells is more complex.
  • Here, the cells performing the same function are arranged into tissues, hence is called tissue level of organisation.

Hence, the correct option is A.
NCERT Reference: Page no. 46 of topic “4.1.1 Levels of Organisation” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 12

Animals which possess cleidoic egg exhibit:

Detailed Solution for Test: Animal Kingdom - 1 - Question 12
  • Cleidoic egg is the term which is used to refer to any closed egg of a land animal. It is also known as amniotic egg, because it occurs peculiarly in amniotes.
  • It is laid by aves and reptiles. It involves internal fertilization because the eggs are laid on land, internal fertilization is needed and thus development occurs after laying the eggs externally.

Hence, the correct option is D.
NCERT Reference: Page no. 58 of topics “4.2.11.5 Class – Reptilia” and “4.2.11.6 Class – Aves” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 13

The phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry is:

Detailed Solution for Test: Animal Kingdom - 1 - Question 13
  • Symmetry is an attribute of an organism showing regularity in body parts on a plane or around an axis.
  • In Phylum Echinodermata, the adult echinoderms are radially symmetrical but the larvae are bilaterally symmetrical. 

Hence, the correct option is B.

NCERT Reference: Page no. 54 of topic “4.2.9 Phylum – Echinodermata” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 14

Identify the animal given below. Mention its phylum.

Detailed Solution for Test: Animal Kingdom - 1 - Question 14

The animal is identified as Euspongia which belongs to phylum Porifera.

Hence, the correct option is C.
NCERT Reference: Page no. 49 of topic “4.2.1 Phylum – Porifera” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 15

Which among the following is incorrect about Porifera?

Detailed Solution for Test: Animal Kingdom - 1 - Question 15
  • The name Porifera comes from the pores present on the surface of sponges.
  • A hard and protective skeleton made up of sponging or spicules supports the body.
  • Development of embryo takes place through an intermediate larval stage.
  • The digestive system in Porifera is absent.

Hence, the correct option is D.

NCERT Reference: Page no. 49 of topic “4.2.1 Phylum – Porifera” of chapter 4.

Test: Animal Kingdom - 1 - Question 16

The cross-section of the body of an invertebrate is given below. Identify the animal which has this body plan.

Detailed Solution for Test: Animal Kingdom - 1 - Question 16
  • Planaria belongs to phylum Platyhelminthes.
  • These are flatworms and has acoelomate body plan.
  • It has three-layered body wall which includes ectoderm, endoderm, and mesoderm. 
  • Acoelomates lack a body cavity, and instead the space between the body wall and the digestive tract is filled with muscle fibres and loose tissue called parenchyma.
  • It acts as a skeletal support, nutrient storage, motility, reserves of regenerative cells and transporting materials.

Hence, the correct option is D.
NOTE: This question is knowledge and understanding based.

Test: Animal Kingdom - 1 - Question 17

Which of these is a fresh water sponge?

Detailed Solution for Test: Animal Kingdom - 1 - Question 17

The zoological name of fresh water sponge is Spongilla.


Fig: Image of Spongilla

Hence, the correct option is D.
NCERT Reference: Page no. 50 of topic “4.2.1 Phylum – Porifera” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 18

Which group of chordates possesses a sucking and circular mouth without jaws?

Detailed Solution for Test: Animal Kingdom - 1 - Question 18

Class-Cyclostomata is comprised of  the living jawless fishes. Their mouth is circular and lack jaws, hence they are also called agnathans.  It is surrounded by tentacles (e.g., lampreys and hellish). These also possess retractable teeth.


Fig: Class of Cyclostomata

Hence, the correct option is B.
NCERT Reference: Page no. 56 of topic “4.2.11.1 Class – Cyclostomata” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 19

The excretory organ of Saccoglossus is:

Detailed Solution for Test: Animal Kingdom - 1 - Question 19

Saccoglossus belongs to phylum Hemichordata and hence the excretory organ is proboscis gland.

NCERT Reference: Page no. 54 of topic “4.2.10 Phylum – Hemichordata” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 20

Which among the following is incorrect about Coelenterata?

Detailed Solution for Test: Animal Kingdom - 1 - Question 20
  • Tissue level of organization is present in Coelenterata.
  • Sea anemone exists in colonies.
  • Coelenterates have two layers of cells in their body i.e. they are diploblastic.
  • They have an incomplete digestive system.

Hence, the correct option is D.
NCERT Reference: Page no. 50 of topic “4.2.2 Phylum – Coelenterata (Cnidaria)” of chapter 3.

Test: Animal Kingdom - 1 - Question 21

The property of emitting light from a living organism is called as ________

Detailed Solution for Test: Animal Kingdom - 1 - Question 21
  • The property of emitting light from a living organism is called bioluminescence.
  • This is a notified property in case of Ctenophores which are also called Comb jellies or sea walnuts.

Hence, the correct option is D.

NCERT Reference: Page no. 51 of topic “4.2.3 Phylum – Ctenophora” of chapter 4.

Test: Animal Kingdom - 1 - Question 22

Which one of the following is a living fossil?

Detailed Solution for Test: Animal Kingdom - 1 - Question 22
  • Limulus polyphemus or Atlantic horseshoe crab are considered 'living fossils' as they haven't undergone obvious morphological changes in comparison with Carboniferous and Triassic fossil forms.
  • Moreover, they are the only ones that survived different extinction events.


Fig: Limulus

Hence, the correct option is A.
NCERT Reference: Page no. 53 of topic “4.2.7 Phylum – Arthropoda” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 23

Which among the following is oviparous?

Detailed Solution for Test: Animal Kingdom - 1 - Question 23

Platypus is oviparous as it is an egg-laying mammal. Rest three are viviparous mammals.

Hence, the correct option is A.
NCERT Reference: Page no. 60 of topic “4.2.11.7 Class – Mammalia” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 24

A reptile having four chambered heart is

Detailed Solution for Test: Animal Kingdom - 1 - Question 24

Reptiles generally possess three chamber heart, two upper chamber and single lower chamber. But in crocodile, the heart is four chambered having two atrium and two ventricles.

Hence, the correct option is C.
NCERT Reference: Page no. 58 of topic “4.2.11.5 Class – Reptilia” of chapter 4 of NCERT.

Test: Animal Kingdom - 1 - Question 25

Which one of the following statements is incorrect?

Detailed Solution for Test: Animal Kingdom - 1 - Question 25
  • Statement A says that in ctenophores, locomotion is mediated with help of comb plates. The body of ctenophores bears eight rows of comb plates externally. These plates are lined with fine cilia or hair-like structures that mediate movement. The presence of cilia gives these plates a comb-like appearance. So, this statement is correct.
  • Statement B says that in cockroaches and prawns the excretory organ is the same and that is Malpighian tubules. Excretion refers to waste removal from the body. Each organism has different organs and ways to remove waste. Cockroaches being an insect excrete using malpighian tubules. On the other hand, a prawn is a crustacean. It excretes using green glands that help in the removal of nitrogenous waste from its body. Thus, this statement is incorrect.
  • Statement C is that in Fasciola, flame cells take part in excretion. The flame cells in Fasciola are modified versions of mesenchymal cells. Each flame cell consists of cilia. These cells vibrate like the flickering of a flame. As they vibrate they help in waste removal from the Fasciola body. Thus, this statement is also correct.
  • Statement D says that earthworms are hermaphrodites still they are capable of cross-fertilization. Earthworms are indeed hermaphrodites. This means that they have both the female and male sex organs in their body. They can self fertilize and produce off-springs. But as they have both types of sex organs, they can produce female as well as male gametes. This allows them to take or give gametes and perform cross-fertilization. So, this statement is correct.

Hence, the correct option is B.
NCERT Reference: Page no. 53 of topic “4.2.7 Phylum – Arthropoda” of chapter 4 of NCERT.

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