Alcohol,nicotine, and caffeine.
Answer and Explanation:
The mouth is part of the digestion system.
Mechanical Digestion is the physical motion our mouth makes to chew up the food. We grind up the food with our teeth, then swallow the food into the next part of the digestive system.
Chemical Digestion in the mouth is the saliva our mouth produces. It breaks down the food along side the mechanical part of the mechanical digestion.
<u><em>#teamtres #PAW (Plant And Water)</em></u>
I'm pretty sure it's high density as a solid.
the answer is C, the division of one cell into two identical cells :3