Recapitulation theory $(Biogenetic law)$ explains "Ontogeny repeats Phylogeny''. It was given by
Lamarck
Haeckel
Darwin
Robert Hooke
It's Obvious
Vestigial organ in man is
$A$ : Lycaenops is a connecting link between reptiles and mammals. $R$ : In permian period there was origin of mammal like reptiles.
In the developmental history of mammalian heart, it is observed that it passes through a two-chambered fish-like heart, three-chambered frog-like heart and finally four-chambered stage. To which hypothesis can this above cited statement be approximated
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