The Living World — Page 3 | NEET Biology

Q21

Homeostasis is organism's

A tendency to change with change in environment

B tendency to resist change

C disturbance in regulatory control

D plants and animal extracts used in homeopathy

Correct Answer

Option B

Solution

(b) Homeostasis: self-regulatory mechanism maintaining favorable internal conditions despite external changes.

Q22

Study of fossils is

A palaeontology

B herpetology

C saurology

D organic evolution

Correct Answer

Option A

Solution

(a) Palaeontology: study of fossils.

Q23

The book Genera Plantarum was written by

A Bessy

B Hutchinson

C Engler and Prantl

D Bentham and Hooker

Correct Answer

Option D

Solution

(d) Bentham and Hooker wrote Genera Plantarum (1862-1883).

Q24

The most important feature of all living systems is

A utilize oxygen to generate energy

B replicate the genetic information

C produce gametes

D utilize solar energy for metabolic activities

Correct Answer

Option B

Solution

(b) Replication of genetic information transfers information across generations.

Q25

Which of the following has proved helpful in preserving pollen as fossils?

A Pollenkitt

B Cellulosic intine

C Sporopollenin

D Oil content

Correct Answer

Option C

Solution

(c) Sporopollenin resists degradation by enzymes, strong acids and alkali — aids pollen fossil preservation.

Q26

Which one of the following is not a correct statement about museums?

A Botanical gardens have collection of living plants for reference.

B A museum has collection of photographs of plants and animals

C Key is taxonomic aid for identification of specimens.

D Herbarium houses dried, pressed and preserved plant specimens.

Correct Answer

Option B

Solution

(b) Museums have preserved specimens (not just photographs); they include jars, dry specimens, skeletons.

Q27

The contrasting characteristics generally in a pair used for identification in Taxonomic Key are referred to as

A Alternate

B Lead

C Couplet

D Doublet

Correct Answer

Option C

Solution

(c) A couplet is the pair of contrasting characters in a taxonomic key.

Q28

The term "New Systematics" was introduced by

A Bentham and Hooker

B Linnaeus

C Julian Huxley

D A.P. de Candolle

Correct Answer

Option C

Solution

(c) Julian Huxley coined "New Systematics" in 1940.

Q29

Basic unit or smallest taxon of taxonomy/classification is

A species

B kingdom

C family

D variety

Correct Answer

Option A

Solution

(a) Species is the basic/smallest taxon.

Q30

Linnaeus evolved a system of nomenclature called

A mononomial

B vernacular

C binomial

D polynomial

Correct Answer

Option C

Solution

(c) Linnaeus developed binomial nomenclature.