Question

why double circulation is necessary in human body?
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Answer 1

Double circulation helps to keep oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body.

Answer 2

Answer:

To separate oxygenated and deoxygenated blood

Explanation:

During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.

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