A mother is one of the better friends for a child
B is the answer!! You’re welcome
Explanation:
Amoeba depends on simple diffusion of gases from breathing. The exchange of gases in Amoeba takes place through its cell membrane.
A. affect
Affect can sometimes be a noun, but it is mostly used as a verb that describes some sort of change or difference.
On the other hand, the word effect is not an action nor verb; it is a noun that refers to the result of a cause.