Question

Which scientist proposed that “embryo never pass through the adult stages of other animals”?

• A. Alfred Wallace
• B. Thomas Malthus
• C. Karl Ernst von Baer
• D. Ernst Haeckel

Hint:

Von Baer’s laws laid the foundation of modern embryology by stating that embryonic stages are unique to each species.

Answer 1

The Correct Option is C

Karl Ernst von Baer, a German scientist, proposed that:
“The embryo of a higher form never resembles any other form, but only its own embryonic form.”
This was in direct contradiction to Ernst Haeckel’s idea of "ontogeny recapitulates phylogeny."
Von Baer’s laws emphasize that embryos develop from general to specific features and never pass through the adult forms of other species.