In the developmental history of the mammalian | vedclass

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(A) The observation that the embryonic development of an organism reflects its evolutionary history is known as the Biogenetic law or the theory of re

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Biogenetic law

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(A) The observation that the embryonic development of an organism reflects its evolutionary history is known as the Biogenetic law or the theory of recapitulation,proposed by Ernst Haeckel.This law states that 'ontogeny repeats phylogeny'.In the case of the mammalian heart,the transition from a two-chambered structure (similar to fish) to a three-chambered structure (similar to amphibians) and finally to a four-chambered structure (mammals) serves as an example of this evolutionary recapitulation.

In the developmental history of the mammalian heart,it is observed that it passes through a two-chambered fish-like heart,a three-chambered frog-like heart,and finally a four-chambered stage. To which hypothesis can this above-cited statement be approximated?

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