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Question

What is the basic requirement for this process shown in the picture to happen?



A

Contraction of stomach

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B

Contraction and relaxation of muscles

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C

Secretion of glands

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D

All of the above

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Solution

The correct option is B

Contraction and relaxation of muscles


The process involved here is peristalsis which happens by alternate contraction and relaxation of muscles present in the lining of alimentary canal.


Biology

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