What is the advantage of having four chambered heart? Support your answer with diagram of the section of a heart.
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The four chambered heart doesn't allows the mixing of pure and impure blood.
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Answer: Presence of four chambered heart serves two purposes. First, it ensures complete segregation of oxygenated and deoxygenated blood. Second, blood is received by the upper chambers and is pumped out by the lower chambers. This segregation between received blood and sent blood increases the efficiency of the heart.
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