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What is double circulation? Why it is necessary ? ........ who will give right answer I will make him brainlist.​

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Answered by khushi112245
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Answer:

The human circulatory system is a double circulatory system. It has two separate circuits and blood passes through the heart twice: the pulmonary circuit is between the heart and lungs. the systemic circuit is between the heart and the other organs.

It is necessary for a human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system more efficient and helps in maintaining constant body temperature.

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Answered by Anonymous
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Double circulation is a process during which blood passes twice through the heart during one complete cycle. This type of circulation is found in amphibians, reptiles, birds, and mammals.

NECCESSARY TO SEPARATE DEOXYGENATED BLOOD AND OXYGENATED BLOOD

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