Science, asked by hariprasadsahu1979, 4 months ago

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Answered by madhur2534
1

Explanation:

3)

Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat).

1)The trachea, commonly known as the windpipe, is a tube about 4 inches long and less than an inch in diameter in most people. 

2)Capillaries are the smallest of blood vessels. They serve to distribute oxygenated blood from arteries to the tissues of the body and to feed deoxygenated blood from the tissues back into the veins.

Answered by Anonymous
3

Answer:

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Explanation:

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