7. Which of the following is a physical change in matter that takes place in the digestive system?

Mechanical digestion physically breaks down food, like when teeth macerate food into a bolus. The stomach contracts and relaxes in a churning motion. ... Chemical digestion occurs when the bonds within larger food molecules are broken, creating smaller molecules that the body can use.May 30, 2017

Explanation:

well we can't tell you because we cant see the time give a screen shot or something.

radon is correct hope this