Question

in different books there are 2 Chember or 3 Chember but I am totally confused .... plz give me answer with explanation and my teacher tells mi the answer is (b) ​

Answer 1

Explanation:

Humans, birds, and mammals have a four-chambered heart. Fish have a two-chambered heart, one atrium and one ventricle.

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Answer 2

Answer:

Two chambered heart has one auricle and one ventricle and is found in fishes.

Explanation:

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