(c) How many chambers are there in the heart of (i) an amphibian, (ii) a mammal, and (iii) a fish?

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Solution

(i) The amphibians (like frogs) have a three-chambered heart (which consists of two atria and one ventricle).

(ii) Mammals (including human beings) have a four-chambered heart (which consist of two atria and two ventricles).

(iii) Fishes have a two-chambered heart (which consist of one atrium and one ventricle).

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