Which of the following explains why selection can cause populations of organisms to change?
a. It teaches organisms how to survive better in their environments. b. It allows some organisms to survive and produce offspring while others do not.
c. It causes changes in organisms to help them in their everyday lives.
d. It chooses certain organisms with good traits over other organisms with bad traits.

c

Explanation:

selection helps organisms adapt and c makes the most sense

C.

It causes changes in organisms to help them in their everyday lives.

Explanation:

When conditions change, some species possess adaptations that allow them to survive and reproduce, while others do not. If the environment changes slowly enough, species will sometimes evolve the necessary adaptations, over many generations.

every el niño cycle is different. every year.

the answer is d.) homologous; have mammary glands