Humans have four chambered heart and the oxygenated and deoxygenated blood is separated. Why it is require to keep the blood seperated ? Explain in detail. Also compare your conclusion with other organisms too.
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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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Here is the answer mate. Hope it helps you.
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