Biology, asked by priya537, 1 year ago

please answer fast.......Describe double circulation human beings systematically . why it is necessary question?explain briefly with diagram.

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Answered by subhu5

7

A circulatory system in which the blood travels twice through the heart in one complete cycle of the body is called double circulation. In the human circulatory system the pathway of blood from the heart to the lungs and back to the heart is called pulmonary circulation; and the pathway of the blood from the heart to the rest of the body and back to the heart is called the systemic circulation. These two types of circulation taken together make double circulation

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