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The swallowed food moves downwards in the alimentary canal because of

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asked Jan 22, 2018 in Science by Rohit Singh (61,782 points) ● 35 ● 133 ● 357

The swallowed food moves downwards in the alimentary canal because of
(a) force provided by the muscular tongue.
(b) the flow of water taken with the food.
(c) gravitational pull.
(d) the contraction of muscles in the wall of food pipe.

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answered Jan 22, 2018 by sameer (82,980 points) ● 5 ● 11 ● 37
selected Jan 27, 2018 by sarthaks
 
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(d) the contraction of muscles in the wall of food pipe.

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