Similar structures are present in the embryos of fish, chickens, and rabbits. In fish, these structures develop into gills, but in chickens and rabbits, they either disappear or develop into other body parts later in embryonic development.Which of the statements below best explains the presence of these structures in the embryos of all three species?

Question

Answer: C - The three species have a common ancestor with these embryonic structures.

Ted Chan · Accepted Answer

The three species have a common ancestor with these embryonic structures.

CLEP Biology Practice Exam