本题目来源于试卷: Continuity and Change D.10 Natural Selection，类别为 IB生物学
[单选题]
Broad-leaved plants are often e+ynv+j 1gi-y acf b0xa(:4ib found near the ground i ti.57jjs b4f cn tropical rainforests. Which characteristic of the leaf is an example of a useful a jc45s .bt 7ijfdaptation?
A. Leaves are covered in a thin layer of wax to allow for the absorption of more water.
B. Leaves have a large surface area to allow them to float on water.
C. Leaves have curled edges to capture more rainwater.
D. Leaves have a large surface area to absorb more sunlight.
参考答案: D
本题详细解析:
Choice D is correct because the large surface area of the leaf increases the amount of light it can absorb on the rainforest floor.
Choice A is incorrect as the wax on leaves is a protective layer which helps plants to retain water, and plants absorb water via their roots.
Choice B is incorrect as these plants are found on the ground and not in water, so this adaptation is not appropriate.
Choice C is incorrect as leaves do not curl up to collect water, especially in tropical environments.
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