Question

Why is it necessary to separate oxygenated and deoxygenated blood in mammals and bird​

Answer 1

Answer:

Answer: In birds and mammals have a double circulation system where both the oxygenated and deoxygenated blood maintains separate. ... It is necessary for them to separate oxygenated and de-oxygenated blood so that their circulatory system is more efficient and can maintain their constant body temperature.

Explanation:

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Answer 2

Answer:

high oxygen supply and can't tolerate mixing of both bloods and helps in maintaining body temperature

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