Which statement is true regarding taxonomic categories?

Higher taxonomic categories such as phylum include a broader range of organisms than lower categories like species.

The category 'genus' includes organisms from different families.

Higher taxonomic categories such as phylum include a broader range of organisms than lower categories like species.

Species within the same genus share no common characteristics.

The order is the highest level of classification in the biological hierarchy.

The taxonomic hierarchy, from broadest to most specific, consists of the following categories:

Kingdom, Order, Phylum, Genus, Family, Species

Class, Phylum, Kingdom, Family, Genus, Species

The expansion of ICZN is:

International Code of Zoological Nomenclature

Indian Code of Zoological Nomenclature

International Code of Zoological Nomenclature

Indian Class of Zoological Nomenclature

International Class of Zoological Nomenclature

More common character possessing group of one species than other species

Less common character possessing group of species than other phyla

Less common character possessing group of one species than other species

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Test: The Living World- 1 - Question 6

The binomial nomenclature system was introduced by:

A.
Charles Darwin
B.
Louis Pasteur
C.
Carolus Linnaeus
D.
Gregor Mendel

Detailed Solution: Question 6

The binomial nomenclature system, which involves giving each species a two-part scientific name, was introduced by Carl Linnaeus, a Swedish botanist, and zoologist.

Hence, the Correct Answer is C
NCERT Reference: Topic- Binomial Nomenclature from chapter "The Living world" of NCERT.

Topic in NCERT: Binomial Nomenclature

Line in NCERT: Each name has two components – the Generic name and the specific epithet. This system of providing a name with two components is called Binomial nomenclature. This naming system given by Carolus Linnaeus is being practised by biologists all over the world.

Test: The Living World- 1 - Question 7

Which of the following is less general in characters as compared to genus?

A.
Species
B.
Family
C.
Class
D.
Division

Detailed Solution: Question 7

The correct hierarchy of classification of various taxons in descending order is given by:
Kingdom → Phylum → Class → Order → Family → Genus → Species

The kingdom is the highest taxon with the least similar characters shared between its various members while species is the lowest level with almost similar morphological and behavioural similarities.

Species is followed by Genus with slightly fewer similarities among its members.

Hence, the Correct Answer is A

Topic in NCERT: Genus

Line in NCERT: "Genus comprises a group of related species which has more characters in common in comparison to species of other genera."

Test: The Living World- 1 - Question 8

The scientific name of an organism is when handwritten in:

A.
Underlined
B.
Capital letters
C.
Bold letters
D.
Small letters

Detailed Solution: Question 8

The binomial system of nomenclature, proposed by Carolus Linnaeus, is the most accepted system of scientific naming which is practiced currently. This type of naming consists of two words taken from Latin origin.
There are four conventions that are followed while writing scientific names. They are as follows:
(i) The first word out of the two words will be the genus whereas the second word would represent the specific epithet.
(ii) The name of the genus should start with a capital letter and the name of the species should start with a small letter.
(iii) The scientific name must be italicized when printed
(iv) The scientific name must be separately underlined when it is hand written.
Example : It can be explained with the help of an example.
Panthera leo
It is the common name of the lion.
In this, the first word represents its genus- Panthera, while the second word represents the specific epithet- leo.
The scientific name has been italicized.
NCERT Reference: Topic- Nomenclature (DIVERSITY IN THE LIVING WORLD) from chapter "The Living world" of NCERT.

Topic in NCERT: Nomenclature

Line in NCERT: 1. Biological names are generally in Latin and written in italics. They are Latinised or derived from Latin irrespective of their origin. 2. The first word in a biological name represents the genus while the second component denotes the specific epithet. 3. Both the words in a biological name, when handwritten, are separately underlined, or printed in italics to indicate their Latin origin.

Test: The Living World- 1 - Question 9

The Darwin of 20th century is:

A.
Aristotle
B.
Ernst Mayr
C.
Carolus Linnaeus
D.
Theophrastus

Detailed Solution: Question 9

Born on 5 July 1904, in Kempten, Germany, Ernst Mayr, the Harvard University evolutionary biologist who has been called ‘The Darwin of the 20th century’, was one of the 100 greatest scientists of all time.

Hence, the Correct Answer is B

Topic in NCERT: Introduction

Line in NCERT: Born on 5 July 1904, in Kempten, Germany, ERNST MAYR, the Harvard University evolutionary biologist who has been called ‘The Darwin of the 20th century’, was one of the 100 greatest scientists of all time.

Test: The Living World- 1 - Question 10

A taxon can be defined as _________

A.
a group of related families
B.
a taxonomic group of any ranking
C.
a group of related species
D.
the number and type of organisms present on Earth

Detailed Solution: Question 10

A taxon is a taxonomic group of any ranking whereas a group of related species is the genus and a group of related families is the order.
Biodiversity is the number and type of organisms present on Earth.

Hence, the Correct Answer is B

Topic in NCERT: TAXONOMIC CATEGORIES

Line in NCERT: "Each rank or taxon, in fact, represents a unit of classification."

Test: The Living World- 1 - Question 11

Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus.

A.
Mangifera indica
B.
Mangifera indica Car. Linn.
C.
Mangifera Indica Lin
D.
Mangifera indica Linn

Detailed Solution: Question 11

Mangifera indica is the scientific name for mango.
Mangifera represents the genus and indica represents the species.
Mangifera indica Linn. It indicates that this species was first described by Linnaeus.

Hence, the Correct Answer is D

Topic in NCERT: Binomial Nomenclature

Line in NCERT:Name of the author appears after the specific epithet, i.e., at the end of the biological name and is written in an abbreviated form, e.g., Mangifera indica Linn. It indicates that this species was first described by Linnaeus.

Test: The Living World- 1 - Question 12

What is the distinguishing factor used to categorize families among plants?

A.
Number of genera in the family
B.
Vegetative and reproductive features of plant species.
C.
Number of species in the family
D.
Presence of common genetic traits

Detailed Solution: Question 12

The distinguishing factor used to categorize families among plants is based on their "vegetative and reproductive features."
Taxonomists analyze the shape and structure of leaves, stems, roots, as well as the arrangement of flowers, fruits, and seeds to group plant species with similar traits into the same family.

Hence, the Correct Answer is B
NCERT Reference: Topic- TAXONOMIC CATEGORIES from chapter "The Living world" of NCERT.

Topic in NCERT: Family

Line in NCERT: "Families are characterised on the basis of both vegetative and reproductive features of plant species."

Test: The Living World- 1 - Question 13

In a hierarchical system of classification of plants, which of the following taxonomic rank ends in ‘aceae’?

A.
Class
B.
Order
C.
Family
D.
Genus

Detailed Solution: Question 13

In the hierarchical system of classification of plants, the taxonomic rank that typically ends in "aceae" is the family.
A family is a higher rank in the classification system, grouping together related genera.
The family name is often derived from the name of a prominent genus within that family. For example, the family Rosaceae includes the genera Rosa (roses), Malus (apples), and Prunus (cherries, plums, etc.).
Similarly, the family Poaceae includes the grasses, and the family Fabaceae includes legumes.

Hence, the Correct Answer is C
NCERT Reference: Topic- TAXONOMIC CATEGORIES from chapter "The Living world" of NCERT.

Topic in NCERT: Order

Line in NCERT: "Plant families like Convolvulaceae, Solanaceae are included in the order Polymoniales mainly based on the floral characters."

Test: The Living World- 1 - Question 14

Which family includes both lions and cats (Felis)?

A.
Solanaceae
B.
Felidae
C.
Canidae
D.
Panthera

Detailed Solution: Question 14

The family that includes both lions and domestic cats (Felis) is called Felidae, often known as the "cat family."
This family includes various species of big and small cats like lions, tigers, leopards, cheetahs, and also our pet cats.

Hence, the Correct Answer is B
NCERT Reference: Topic: “Taxonomic Categories” from Chapter "The Living world" of NCERT.

Topic in NCERT: Family

Line in NCERT: "Among animals for example, genus Panthera, comprising lion, tiger, leopard is put along with genus, Felis (cats) in the family Felidae."

Test: The Living World- 1 - Question 15

Genus has

A.
More common character possessing group of one species than other species
B.
More common character possessing group of species than species of other genera
C.
Less common character possessing group of species than other phyla
D.
Less common character possessing group of one species than other species

Detailed Solution: Question 15

To understand the concept of genus in taxonomy:

- A genus typically comprises a group of species sharing more common characteristics among themselves than with species from other genera.
- This distinction helps in classifying organisms into related groups based on similarities in traits.
- Therefore, the correct answer is B: "More common character possessing group of species than species of other genera." This choice highlights the defining feature of a genus in taxonomy.
NCERT Reference: Topic- Taxonomic Categories ( Sub Topic - Genus) from chapter "The Living world" of NCERT.

Topic in NCERT: Genus

Line in NCERT: "Genus comprises a group of related species which has more characters in common in comparison to species of other genera."

The Living World- 1 - NEET Biology Class 11 Free MCQ Test with solutions

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