Biology, asked by situj688, 2 months ago

Explain the importance of two structures in the evolution of animals.

Answers

Answered by shlokjilhewar7

2

Explanation:

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Answered by Anonymous

1

Answer:

heart in animals primarily is is two chambered in fishes

where as in amphibians & reptiles it is 3 chambered(exception crocodile 4 chambered)

in aves(birds) and mammals it is 4 chambered

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