Question

what is mechanical digestion? the process of breaking down food by physically mashing or grinding it into smaller pieces the process of breaking down food using chemical reactions the process of breaking down food using machines outside the body the process of physically transporting food to cells throughout the body

Explanation:

Mechanical digestion involves physical - not chemical - processes to break down food into smaller pieces in the body, like chewing in the mouth and churning in the stomach.

Answer:

The process of breaking down food by physically mashing or grinding it into smaller pieces