Embryos of vertebrates (fish, chicken, human) look surprisingly similar in early stages. This is evidence for
- A
Lamarckian inheritance — early developmental traits are acquired anew each generation
- B
Convergent evolution — unrelated vertebrate lineages arrived at similar embryos independently
- Ccheck_circle
Common ancestry — early developmental programs are conserved across vertebrates
- D
Strict recapitulation — every embryo replays its full adult ancestry stage by stage
Explanation
Conservation of early developmental gene networks (e.g., Hox genes) reflects shared ancestry.