Question

Describe double circulation in human beings. Why is it necessary?

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Answer 1

Answer:

MENE DEKHA KI KAAL AAP BOHOT GALIYA DEE RHE THEE ..

ISILIYE MENE KAAL AAPKO UNFOLLOW KIYA AAJ KE BAAD NHI DENE KISIKO GALIYA ..OK..

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Answer 2

Answer:

This means that during a single cycle, the blood goes twice in the heart. ... This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.