Science, asked by vishalmahajan6934, 1 year ago

Why do fish gills have a lot of blood?

Answers

Answered by Prashmit01
0
Animals which swim a lot need a considerable amount of oxygen tomake the muscles work. ... To getenough oxygen the fish must makewater flow across its gills. The fish does not breathe water in and out of its mouth. The water gives oxygen to the blood in the gill filaments and receives carbon dioxide in exchange.
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