Question

After which event would you say that evolution has occurred?

(A)
An animal's white winter coat is replaced by a darker coat in the spring.

(B)
An allele frequency in a population changes over time.

(C)
A new predator comes into an environment

(D)
An individual is born with six fingers on one hand instead of five.

Answer 1

B

Step-by-step explanation:

Answer 2

I believe the answer is B. because once the allele changes the future populations will change along with it

Step-by-step explanation: