Biogeographers Are Studying Two Similar Tree Species to Determine What

Multiple Choice

Biogeographers are studying two similar tree species to determine what processes led to the formation of these species.They might conclude that speciation began due to the process of vicariance if

A) the two species formed after the last Ice Age.
B) the two species are currently on the same continent.
C) continental drift separated two original populations.
D) free dispersal occurred among the original populations.
E) the two species show more than 90 percent similarity.