Question

What is double circulation?
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Answer 1

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It refers to a system in which blood pumps through the heart twice while traveling through various parts of the body is called  double circulation.

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Answer 2

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$\blue\longmapsto\:$ The blood circulation in which blood passes through the heart twice ,in a complete cycle is called double circulation.It consists of pulmonary circulation and systematic circulation.

Significance :- It prevents the mixing of oxyhenated and deoxygenated types of blood

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