Question

what is the digestion and explain mechanical digestion in human body​

Answer 1

Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.

Answer 2

Answer:

Digestion is the breakdown of naturally occurring foodstuffs into diffusable form.

Explanation:

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