Darwin's Observation of Vastly Different Species Living in Similar Island

Multiple Choice

Darwin's observation of vastly different species living in similar island environments led him to conclude that each population had arisen separately from existing species on these islands, since the geographic isolation prevented migration of species from the mainlands. This scenario is an example of ____.

A) biogeography
B) plate tectonics
C) comparative morphology
D) morphological convergence
E) homologous structures