Question

what do u mean by double circulation and why is it necessary?

Answer 1

Answer:

In double circulation, blood flows twice through the heart, during each cycle of passage through the body. Double circulation is important to keep the oxygenated and deoxygenated blood separate from each other in the body and prevent their mixing. Such separation allows a highly efficient supply of oxygen to the body.

Answer 2

☆Double circulation is the process of blood circulation in the body wherein the blood passes through the heart twice.

☆It is necessary for the purification of deoxygenated blood and exhalation of carbon dioxide.

☆It also helps to seperate the oxygenated and deoxygenated blood.