Question

Why is the double circulation of blood is necessary in human beings? ?

Answer 1

Hey dea..!

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

Hope it helps u...!

#bipasha

Answer 2

double blood circulation is necessary because in human body the streams flows ,one carrying oxygenated blood and another carrying deoxygenated blood . the oxygenated is useful for the body therefore to prevent this from deoxygenated blood . blood for double from heart