Purchase mobileappIcon Download our Mobile App
Call Us at 011-40705070  or  
Click to Call
Select your Board & Class
  • Select Board
  • Select Class

'ontogeny repeats phylogeny' justify the statement

Asked by K.bharath Kumar(student) , on 21/11/13

Become Expert
Become a Science expert
Start Now with Video Lessons, Sample Papers, Revision Notes & more for Class-X - CBSE 


Ontogeny means development history of an organism and phylogeny means ancestral history of an organism. According to the theory "ontogeny repeats itself" developmental history of an organism repeats its ancestral history. For example:- Human embryo during its development go through various stages that include zygote, gastrula stage, triploblastic stage, and later two chambered heart stage, among these stages zygote represent unicellular protozoan, gastrula represent coelenterate, triploblastic represent annelid and two chambered heart represent fish embryonic characteristics which is followed by the human features. This shows that ontogeny repeats phylogeny.

Posted by Priyanka Bansal(MeritNation Expert)on 22/11/13

This conversation is already closed by Expert

Ask a QuestionHave a doubt? Ask our expert and get quick answers.
Show me more questions