In the Late Devonian Era,the Seas Began to Recede and the Land

Multiple Choice

In the late Devonian era,the seas began to recede and the land became more fertile.These environmental changes resulted in the emergence of land-dwelling vertebrates.Some animals are better able to survive and reproduce under changing environmental conditions.This is an example of:

A) adaptation
B) evolution
C) mutation
D) speciation
E) natural selection