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WAEC Biology 2002 Question 58

Question 58

Adaptation

Which of the following is an adaptation by plants to reduce the rate of water loss in a dry habitat? Possession of

  1. A.a few sunken stomata on the lower epidermis only
  2. B.long leaf tendrils
  3. C.leaves with serrated edges
  4. D.strong tap root.
Show the answer and explanation

Answer: A (a few sunken stomata on the lower epidermis only)

Explanation

Few stomata, sunk in pits and only on the shaded lower surface, let out less water vapour. A tap root helps get water but does not reduce water loss.