Question

Describe the evolutionary change in the pattern of heart among the vertebrate?

Answer 1

The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. In fishes, the heart was like a hollow tube. This evolved into the four-chambered heart in mammals. Fish has only two chambers in its heart – one auricle and one ventricle.

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Answer 2

As we know that fish evolue first so their heart is two chamber making s shape while crocodile has three chamber heart then mammals has four chamber heart which is completely modified form


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