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JAMB Biology 2013 Question 47

Question 47

Adaptation

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

  1. A.stem to leaves.
  2. B.leaves to spine.
  3. C.flower size.
  4. D.internodes.
Show the answer and explanation

Answer: B (leaves to spine.)

Explanation

In cactus the leaves are reduced to spines, which cuts down water loss by transpiration; the green stem does the photosynthesis.