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In mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood ? How are they separated in the human heart? |
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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. |
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