Question

Which is a process that leads to speciation?

A.
Natural selection allows for adaptations to occur regardless of the environment.

B.
Populations become isolated over a long period of time.

C.
Spontaneous generation allows for behavioral adaptations.

D.
Spontaneous generation allows for structural adaptations.

Answer 1

"B. Populations become isolated over a long period of time" is the best option for what creates certain species. These isolated environments select for traits that are favorable.