Science, asked by Anjanakalliswaran, 7 months ago

what is melenin? why does melenin occur?

Answers

Answered by rnsingh21

Answer:

Melena or melaena refers to the dark black, tarry feces that are associated with upper gastrointestinal bleeding.[1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria.[2]

Explanation:

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