Because of the amount of surface area per unit volume, a large body size loses heat less rapidly than a smaller size of the same shape. Based on your knowledge of natural selection, what trend in deer size might you predict?
A) The average body size of the deer population increases as you go toward the poles.
B) The average body size of the deer population has no relationship to geographical location.
C) The average body size of the deer population increases as you go east.
D) The average body size of the deer population increases as you go toward the equator.

Question

Quizplus · Accepted Answer

Larger animals have a lower surface area to volume ratio, which helps them conserve heat in colder climates. Therefore, deer populations are likely to be larger in size closer to the poles, where temperatures are lower.

Because of the Amount of Surface Area Per Unit Volume