Which of the following is essential for regulated movement of food from the oesophagus to anus?
A
Diffusion
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B
Osmosis
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C
Peristalsis
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D
Secretion of glands
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Solution
The correct option is C Peristalsis Peristalsis is the wavelike muscular contractions in the alimentary canal. It is characterized by alternate contraction and relaxation, which pushes ingested food throughout the digestive tract towards anus.