What is phylogeny?

What do you mean by "ontogeny repeats phylogeny?"

Who proposed the biogenetic theory "ontogeny repeats phylogeny "?

Who gave the statement "ontogeny repeats phylogeny"?

What do you mean by "Ontogeny repeats phylogeny" ? Is it true or false? Support your answer with two evidences

Phylogeny is

Phylogeny is

Phylogeny is

“Ontogeny repeats phylogeny.” Explain.