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

Options

A. Biogenetic law
B. Hardy Weinberg law
C. Lamarck's principle
D. Mendelian principle

Answer

A

Explanation

Haeckel biogenetic law states that ontogeny repeats phylogeny. An organism repeats its ancesteral history during development. Therefore during embryonic development the mammalian heart first takes the form of fish then frog and at last mammal.