Question

What is double circulation???

Answer 1

DOUBLE CIRCULATION MEANS WE HAVE TWO LOOPS IN OUR BODY ON WHICH BLOOD CIRCULATES.
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Answer 2

Double circulation means the movement of the blood from lungs to heart and again to various parts of the body.It is a continuous process. It is necessary because the separation of oxygenated and de-oxygenated blood increases the efficiency of circulation in human beings.

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