Natural selection is an evolutionary mechanism that is caused by what

when one allele makes an organism more or less fit, that is, able to survive and reproduce in a given environment.

The answer is Advantageous traits become more common in a population.

I had this on a test.

Have a great day.

hello there,

guys i’m confused.

which rock will weather faster?

answer: b rock

answer; i believe the correct answer is (anemia);