Question

Which of the following provides the best example of how comparative embryology supports the theory of evolution?
A. Humans do not lay eggs as birds do, but birds produce yolk sacs instead of embryos, suggesting birds evolved later than humans.
B. Humans have a tailbone that is not visible during embryonic development, which suggests that humans evolved to not depend on their tailbone serving a useful purpose.
C. Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor.
D. Humans have embryonic cells that develop in a predictable way, which suggests that other organisms also evolved to develop in the same manner

Answer 1

"Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor" is the one among the following that provides the best example of how comparative embryology supports the theory of evolution. The correct option among all the options that are given in the question is option "C". 

Answer 2

Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor. The correct option is "C"

How does comparative embryology support the theory of evolution?

The field of comparative embryology aims to understand how embryos develop, and to research the inter-relatedness of animals. It has bolstered evolutionary theory by demonstrating that all vertebrates develop similarly and have a putative common ancestor.

Karl Ernst von Baer, a Russian scientist, made observations on embryos of different species and came up with four principles of comparative embryology.

For more information regarding comparative embryology theory, visit:

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