Diversification of Mammals After the Extinction of the Dinosaurs Is

Multiple Choice

Diversification of mammals after the extinction of the dinosaurs is considered an adaptive radiation because a few mammal species rapidly evolved into most of the current mammalian lineages in a relatively short amount of time.This diversification was partially driven by the evolution of endothermic homeostasis in mammals,which is an example of

A) allopatric speciation.
B) reproductive isolation.
C) a key innovation.
D) hybridization.