Answer:
The four functions of the mouth in the digestive process is given below:
Step-by-step explanation:
1. Digestive process starts from mouth.
2. It moistens food so it move more easily through esophagus into stomach.
3. Mouth produces saliva which has an enzyme that begins to break down starches in food.
4. Mouth chews food and digestion involves breaking down the food into simpler nutrients that can be used by cells.