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4} What is the advantages of 4 chambered heart
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Answer 1

In four chambered heart left half is completely separated from right half by septa. This prevents oxygenated and deoxygenated blood from mixing. This allows a highly efficient supply of oxygenated blood to all parts of the body. This is useful in animals that have high energy needs such as birds and mammals.

Answer 2

Answer:

mendhak ke hriday mein khalistan kab hota hai uttar bataiye