Study the four statements (A-D) given below and select the two correct ones out of them :A. Definition of biological species was given by Ernst Mayr.B. Photoperiod does not affect reproduction in plants.C. Binomial nomenclature system was given by R.…

Study the four statements (A-D) given below and select the two correct ones out of them :

A. Definition of biological species was given by Ernst Mayr.

B. Photoperiod does not affect reproduction in plants.

C. Binomial nomenclature system was given by R. H. Whittaker.

D. In unicellular organisms, reproduction is synonymous with growth.

The two correct statements are

1. C and D

2. A and D

3. A and B

4. B and C

Doubtly Asked 30 Oct 2026 NEET UG 2016 Phase 2 Practice test neet Save WhatsApp Report

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Best answer

Answer: 2. A and D

A: Ernst Mayr gave the biological species concept. True.
B: Photoperiod affects flowering and reproduction in plants. False.
C: Binomial nomenclature was given by Carolus Linnaeus, not Whittaker. False.
D: In unicellular organisms, reproduction and growth are the same thing, since cell division increases the number of cells. True.

So A and D are correct.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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