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Most bacteria ingested with food are killed by

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An Intiative by Sri Chaitanya

cilia and mucous on the linings of the tract

stomach acids

bile in the small intestine

the intrinsic factor in the stomach

answer is B.

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Detailed Solution

In the stomach, HCl (hydrochloric acid) present is highly acidic in nature pH3-4.This acid kills the bacteria which come with food.

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