Question

why it is necessary to seperate oxygenated and deoxygenated blood in birds and mammals

Answer 1

necessities are

Explanation:

it separate the oxygenated and deoxygenated blood from mixing . this type of separation of oxygenated and deoxygenated blood in sure highly efficient supply of oxygen . it is required to maintain their body temperature

Answer 2

It is necessary in mammals and birds to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.