Question

Organisms with advantageous adaptations are more likely to survive and reproduce than organisms without the advantageous adaptations. This phenomena is known as natural selection.

In order for natural selection to occur...
A)one population must become extinct so another can be created.
B) organisms within a population must have some genetic variation.
C) all of the organisms within a population must be exactly the same.
D)there must be more male organisms than female organisms.