How do embryological studies provide evidence for
evolution? 

Asked by ayushshandilya83 | 14th Mar, 2018, 05:26: PM

Expert Answer:

  • The embryology of different vertebrates provides very strong evidence of different vertebrates showing striking similarities.
  • There is an obvious similarity between embryos of fish, amphibians, reptiles, birds, and mammals.
  • A comparison of embryos of vertebrates shows that all have gill slits, even though they do not remain later in life, except in fish. This indicates a fundamental step that is common to all vertebrates and supports the idea of a common ancestor.
  • Other features that do not exist in the adult form but appear in the embryos include limb buds in Dolphins and human tail buds. 
  • This shows that these species share a common ancestor, so their developmental processes occur in a similar way, regardless of what other changes have taken place since their divergence.

 

Answered by Sheetal Kolte | 14th Mar, 2018, 06:01: PM