why is it necessary to separate oxygenacted and deoxygenated blood in mammals and birds?
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mammals are warm blooded animals, which remains unchanged even temperature in surrounding changes.to maintain the high energy need required to maintain temp. of blood inside the body.
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Explanation:
It is necessary to separate oxygenated and deoxygenated blood to maintain efficient supply of oxygen into the body. This system is essential in animals that have high energy need. For example, animals like mammals and birds which constantly use this energy to maintain their body temperature.
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