Biology, asked by kaushiktushar2487, 1 year ago

Why is blood circulation in humans is known as double circulation andj why is it necessary?

Answers

Answered by sonatina
1
Blood goes through the heart twice during each cycle of passage through the body in human being. Therefore blood is known as double circulation. Double circulations is necessary for human beings , as they are warm blooded animals which requires continues supply of oxygen to produce energy

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