Question

in mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood?​

Answer 1

Answer:

the separation of oxygenated and deoxygenated blood provide high oxygen supply as mammals and birds have high energy need to maintain their body temperature...

hope it will help uhhh...if yes. don't forget 2 follow...

Answer 2

Answer:

its necessary bcs the oxygen and co2 concentration should not mix with each other or else if co2 conc increases then a person can die