Question

wHy it is necessary to be chambered heart in human

Answer 1

It is necessary to prevent the oxygenated blood from mixing with the deoxygenated blood..

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Answer 2

it is necessary to have chambered heart in human becuz human beings being a multicellular animal has got high energy needs and this segregation of human heart into four chambers is one the most important factors responsible in meeting high energy demands.

four chambers of heart prevent mixing of oxygenated and deoxygenated blood and helps in supplying maximum amount of oxygen. this oxygen is further used up in meeting high energy needs of the organism ( in this case human).

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