why it is necessary to separate oxygenated and deoxygenated blood in mammals and birds?
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heart this is used to separate oxygenated and deoxygenated blood in the organisms
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The mammals and birds are warm blooded animals which have high energy needs because they constantly required energy to maintain their body temperature it is necessary to separate oxygenated blood and deoxygenated blood in mammals and birds because such a separation allow a highly efficient supply of oxygen to both sale which required for producing a lot of energy needed by them.
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