Why must the pH values of the mouth, stomach, and small intestine be different?

you gotta add the following molecules so we can give u an answer

explanation:

the answer is c.the valence of the atoms combine .

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101