Over the Course of Millions of Years Various Environments Have

Multiple Choice

Over the course of millions of years various environments have changed.As grasslands slowly took the place of forests the inhabitants were forced to adapt or they went extinct.During this time period the horse gradually evolved from a small cat sized creature to the size of the modern horses we see today.This is an example of which type of natural selection?

A) directional
B) disruptive
C) stabilizing
D) artificial
E) drift