Question

what are the advantages of four chambered heart?

Answer 1

Presence of four chambered heart in mammals and birds avoids the mixing of oxygenated and deoxygenated blood. This ensures a highly efficient supply of oxygenated blood to their body.

These animals are warm blooded animals so they require high amount of energy to maintain their body temperature which is ensured by efficient supply of oxygenated blood to their body through double circulation and presence of four chambered heart.