Short answer questions XXII — task. Science CBSE, Class 10.

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What is the advantage of having four chambered heart?

a. Four chambered heart ensures that there is separation of oxygenated and deoxygenated blood.

b. Four chambered heart is highly efficient in supplying oxygen-free blood to the various parts of the body.

c. Four chambered heart is useful in warm blooded animals like birds and mammals which have high energy needs.

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34. Short answer questions XXII