Because of the greater light intensity and heat absorption on the upper surface of the leaf, the upper surface has
A) more stomata than the lower surface does.
B) fewer stomata than the lower surface does.
C) a thicker cuticle than the lower surface does.
D) both more stomata and a thicker cuticle than the lower surface does.
E) both fewer stomata and a thicker cuticle than the lower surface does.

Question

Quizplus · Accepted Answer

The upper surface of a leaf typically has a thicker cuticle to protect against excessive light and heat, and fewer stomata to reduce water loss through transpiration, as the conditions are harsher compared to the lower surface.

Because of the Greater Light Intensity and Heat Absorption on the Upper