Question

what is the advantage if a four chambered heart ??

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Answer 1

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Mammals and birds have the most efficient heart with four chambers that completely separate the oxygenated and deoxygenated blood; it pumps only oxygenated blood through the body and deoxygenated blood to the lungs.

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Answer 2

Answer:

in four chambered heat left half is completely separated from right half by septa . this presents oxygenated and deoxygenated blood from mixing . this allows a high efficient supply of oxygenated blood to all parts of the body . this is useful in animal that have high energy neds such as Birds and mamals