Question

why human have four chambered heart . explain

Answer 1

Because they are warm - blood, organisms

Answer 2

Hi there!

Humans and Birds have more complex body design in comparision to those of other divisions.

So, they require more pumping of blood to more organs as well as, the heart and body in the case of these animals cannnot afford the intermixing of the bloods (oxygenated and deoxygenated blood).

This is why, we need four chambered heart.


[ Thank you! for asking the question. ]
Hope it helps!