JAMB Biology 2022 Objective — Question 18
Question 18 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2022 Objective paper, with the correct answer and a full explanation.
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18. One of the adaptations of Cactus to conserve water is the reduction of
- A. (A) flower size
- B. (B) internodes
- C. (C) leavesCorrect
- D. (D) stem
Explanation
Since the rate of transpiration depends on the surface area of leaves, the reduction of leaves to spines (as seen in Cactus opuntia) is one way the plant conserves water.
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