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प्रश्न
What moves the food in the digestive organs?
अति संक्षिप्त उत्तर
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उत्तर
Peristalsis is the rhythmic, wave-like contraction and relaxation of the smooth muscles lining the walls of the digestive tract that propels food forward.
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अध्याय 1: Life Processes - Exercise 1 [पृष्ठ ३४]
