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In which of the following purifying bacteria is present

In which of the following, purifying bacteria is present

Options

(a) Intestine
(b) Colon
(c) Stomach
(d) Liver

Correct Answer:

Colon

Explanation:

The bacteria are found in the colon which infact are the main source of vitamin-B₁₂ as vitamin-B₁₂ is not found in plants. Few micro-organism of the rumen of stomach of ruminant mammals also synthesize large quantity of vitamin-B₁₂

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