The World's Biogeographic Regions, Originally Proposed by Alfred Russel Wallace

Multiple Choice

The world's biogeographic regions, originally proposed by Alfred Russel Wallace, divide Earth into groups of species that often change dramatically over relatively small distances.Today, we know that these assemblages of organisms have come together over millions of years primarily through the process of

A) vicariance.
B) biogeography.
C) continental drift.
D) biotic interchange.
E) species diversification.