All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?
These species evolved in similar environments
The embryos of these species require these structures to survive.
These species have the exact same DNA sequence.
These species share a common ancestor.
I hate evolution
These species share a common ancestor.
Some fish grew legs and walked out of the ocean so I could fail algebra
The answer was A: These species share a common ancestor.
ur mother
The presence of a tail and gill slits in vertebrate embryos suggests that these species share a common ancestor. This is known as embryological homology. During embryonic development, all vertebrate embryos go through a similar pattern of development, which includes the formation of these structures.
Embryological homology occurs when different species exhibit similar stages or structures during embryonic development, despite their differences in adult forms. It suggests that these species have inherited certain developmental traits from a common ancestor.
This is supported by evidence from comparative embryology, which involves studying the embryos of different species to understand their similarities and differences. By examining the embryos of various vertebrates, scientists have observed that they go through similar stages of development, including the formation of a tail and gill slits.
It is important to note that while all vertebrate embryos have a tail and gill slits during a certain stage of development, these features may or may not persist in the adult stage, depending on the specific species.