Why do cacti have thick, waxy skins?(A) To keep bugs from eating the plant. (B) To store wate

問題詳情

48.Why do cacti have thick, waxy skins?
(A) To keep bugs from eating the plant.
(B) To store water in the skin.
(C) To slow evaporation through the skin.
(D) To prevent pores from forming.

參考答案

答案：B
難度：適中0.454545
統計：A(0),B(5),C(3),D(1),E(0)

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