本题目来源于试卷: Evolution & Extinction，类别为 IB环境系统与社会
[单选题]
Figure: A broad leaf in xx 9jp fo .my,d3c-5dd a tropical 2dt zp6gzm, ftjnp5);8bz , ed rainforest
Broad-leaved plants are often found near the ground in tropical rainforests. Identify the characteristic of the leaf that is an example of a useful adaptation.
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:
Option D is correct because the lxu)zy*b5qd n5-d l1isarge surface area of the leaf increases the amount of light it can absorb on the rainforest floor.
Option 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.
Optiz1yls d55xu*db iq-)n on B is incorrect as these plants are found on the ground and not in water, so this adaptation is not appropriate.
Option C is incorrect as leaves do not curl up to collect water, especially in tropical environments.
| 
