The rhythmic waves of muscle contractions that move food through the digestive tract is called
a. peristalsis
b. caprophagy
c. muscularis
d. emulsification

a. Peristalsis

Explanation:

Peristalsis is the movement of bolus from the mouth down the osephagus to the stomach, and from stomach to intestines in form of chyme, by smooth muscle contractions in a longitudinal and circular motion.

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