Question

describe double circulation. WHY IT IS NECESSARY.. ​

Answer 1

Answer:

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circulatory system in which the blood travels 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 rest of the body and back to the heart is called systematic circulation and the password of blood from the heart to the lungs and back to the heart is called pulmonary circulation these two types of circulation taken together make double circulation the double circulation is necessary to supply oxygenated blood to the whole body and then to get deoxygenated blood from oxygenated in the lungs.

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Answer 2

Answer:

double circulation means blood enters n exits the heart 2 times in a cycle it is necessary so that the oxygenated blood does not get mixed with the deoxygenated blood

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