Question

the bolus moves down the alimentary canal because of dash​

Answer 1

Answer:

The bolus moves down the alimentary canal because of force provided by the muscular tongue .

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Answer 2

Explanation:

The walls of the alimentary canal include layers of smooth muscle controlled by the autonomic nervous system. Alternating contraction and relaxation of these muscles is called peristalsis. 

Peristaltic waves push the swallowed bolus down the esophagus.

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