CBSE Class 10 Science 2019 · Paper 31/1/3/C · Question 1
What causes movement of food inside the alimentary canal in human beings ?
Answer
Peristalsis, the rhythmic contraction and relaxation of the muscles in the wall of the alimentary canal, pushes the food forward.
Peristalsis (peristaltic movements): the muscles in the wall of the alimentary canal contract and relax rhythmically, and this wave of contraction pushes the food forward along the canal.
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