Suma said that peristalsis involves the contraction of the muscle behind the food. Uma said that during peristalsis

Monjur Alahi

Suma said that peristalsis involves the contraction of the muscle behind the food. Uma said that during peristalsis relaxation of the muscle in front of the food gives rise to a thrust that pushes the food. 

A) Suma is correct 

B) Uma is correct 

C) Both are wrong 

D) Both are right


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Salim Ahmed Kawsar

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D) Both are right

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