Question

The process of _______ begins in the mouth, where for is ground into small pieces.
A) Excretion
B)saliva
C)Waste
D)Digestion

Answer 1

Umm... excretion sorry not sure about that one. Hope this helsp

Answer 2

B) saliva.

excretion is waste in liquid form as in pee which does not begin in the mouth so it's wrong.
waste obviously does not begin in the mouth.
digestion begins in your stomach, not your mouth.
saliva starts in the mouth and then processes on. So saliva is correct