Question

give reasons 1 oxygenated blood and deoxygenated blood are separated in mammals heart

Answer 1

Siemens acquire more energy to fulfill their needs also there metabolism is much higher as compared to other amphibians and reptiles so to provide enough oxygen to Every cell and every organ there are separated Chambers for oxygenated and deoxygenated blood

Answer 2

from the class aves and then mammals have four chambered heart.as these creatures have complex quick and large supply of oxygenated blood is required for every cell in their bodies