2. The contraction and expansion movement of the walls of the food pipe is called:

A. translocation
B. transpiration
C. peristaltic movement
D. digestion



Answer :

Final answer:

Peristalsis is the wave-like movement of the digestive system that pushes food forward through muscular contractions.


Explanation:

Peristalsis is the wave-like contraction and relaxation of the walls of the alimentary canal that helps move food forward. This process involves the muscular contraction and relaxation of the intestines to propel ingested material through the digestive tract. Peristalsis is essential for the movement of material through the gastrointestinal tract.


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