Which plays both a role in physical and chemical digestion?

Biology

2 answers:

kotykmax [81]3 years ago

6 0

Answer:

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.The digestive system fuels the cells and the excretory system rids the body of the cells' waste.

Explanation:

Alex17521 [72]3 years ago

3 0

Answer:

Saliva

Explanation:

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