JAMB Biology 2013 Objective — Question 47

Question 47 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2013 Objective paper, with the correct answer and a full explanation.

One adaptation of Cactus opuntia to conserve water is the reduction of

A. leaves to spinesCorrect
B. flower size
C. internodes
D. stem to leaves

Explanation

Cactus opuntia is a xerophytic (desert) plant; the possession of spiny leaves (reduction of leaves to spines) is a structural adaptation to conserve water.

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