Question

Mammal separation of oxygenated and deoxygenated blood is necessary

Answer 1

yes, because they have four chambers which help them to separate... it they collapse it may take to death..

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Answer 2

Separation of oxygenated and deoxygenated blood allows good supply of oxygen to the body . This system is useful in animals that have high energy requirement . Mammals constantly need oxygen to get energy to maintain their body temperature constant .