Read the following statements regarding adaptation and choo…

Biology Organisms and Populations Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Read the following statements regarding adaptation and choose the correct option.

(i) Many xerophytic plants have a thick cuticle on leaf epidermis and sunken stomata to prevent transpiration.

(ii) Some xerophytic plants have special photosynthetic pathway (CAM) that enables their stomata to close during day.

(iii) Opuntias has no leaves, they are reduced to spines.

(iv) All adaptation are genetically fixed in all organism.

(v) In Opuntia, the pathway of photosynthesis is through C 3 cycle.

(i), (ii) and (iii)

Only (ii)

(iv) and (v)

All of these

Text Solution

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The correct answer is:

(i) True — Xerophytes have thick cuticle and sunken stomata to reduce water loss.

(ii) True — CAM plants open stomata at night and close during day.

(iii) True — Opuntia has leaves reduced to spines.

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