______is the muscular contractions of the digestive tract, which helps push food through the body.

Answer:
[tex]\huge\boxed{Peristalsis }[/tex]
Explanation:
Peristalsis is the muscular contractions of the digestive tract, which helps push food through the body. During the process of digestion, the muscles contract and relax accordingly for the food to food through the alimentary canal.
[tex]\rule[225]{225}{2}[/tex]
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