why is it necessary to separate oxygenated
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why is it necessary to separate oxygenated.......what???
ur question is incomplete
missing word is blood.
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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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hey mate !
one word is missing that is =====> blood
your answer is -:
Ans. 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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