why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds
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...Gm mate.....
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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Explanation:
Mammals and birds are warm blooded. This means they can control their body temperature and don't have to depend on environment for their body regulation. Because of this birds and mammals require optimum oxidation of glucose which would be possible with good supply of oxygen. By developing four chambered heart they have made it possible to completely segregate the oxygenated and deoxygenated blood in their bodie which is their need because of their habit and habitat.
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