An example of an embryonic characteristic that supports common origins is the presence of gill slits.
1. Gill slits are openings found in the pharyngeal region of the embryos of various vertebrates, including fish, amphibians, reptiles, birds, and mammals during their early stages of development.
2. The presence of gill slits in embryos indicates a shared ancestry among these different vertebrate groups.
3. Even though in humans these structures develop into other parts of the body and are not functional as gills, the fact that they appear in early embryonic stages supports the idea of common origins among vertebrates.
4. This embryonic characteristic provides evidence for the theory of evolution and the relatedness of different species through shared ancestry.
In conclusion, the presence of gill slits in the embryos of various vertebrates is an example of an embryonic characteristic that supports common origins.
