State “Biogenetic law” as proposed by Haeckel.

Biogenetic law:

1. Biogenetic law is also known as recapitulation theory given by Ernst Haeckel in 1866.
2. It states that ontogeny recapitulates phylogeny.
3. It is a historical theory stating that the embryogenesis of an animal from fertilization to ontogeny moves through various stages which are similar to successive adult stages in the phylogeny.
4. the law states that an embryo’s developmental stage depicts an adult form of an ancestor post-evolution.
5. It suggested that specialists could analyze the evolutionary association between taxonomic groups by drawing similarities from entities from the taxa and developmental phases of embryos.