As You Hike Up a Mountain, You Realize That the Plants

Multiple Choice

As you hike up a mountain, you realize that the plants and animals present at the base are not the same as those at the top. This observation is the basis of

A) natural selection.
B) biogeography.
C) comparative anatomy.
D) geology.
E) paleontology. Observing that plants and animals are distributed differently among varying environments is the basis for the science of biogeography.