Define Biogenetic law, giving an example.

Explanation

It was proposed by Ernst Haeckel. It states that ontogeny repeats phylogeny which means the development history of an organism repeats the evolutionary history of its ancestor Eġ : Tadpole larva of frog, it resembles fish both externally and internally. It possesses a tail, gills and two chambered heart like that of fish. Later it metamorphoses into adult frog.