Question

why is separation of oxygenated and deoxygenated blood essential for organisms with high energy needs?

Answer 1

Separation of oxygenated and deoxygenated blood allows better and efficient supply of oxygen to all parts of the body.

This separation allows for better oxidization of glucose which is required for energy.
In warm blooded mammals and birds which have high energy requirements and which need to maintain a constant body temperature, this is needed.

Answer 2

Ans. 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.

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