All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates? (l point) The embryos of these species require these structures to survive, These species share a common ancestor. These species evolved in similar environments These species have the exact same DNA sequence.

The fact that all vertebrate embryos exhibit tails and gill slits at some stages hints that these species share a common ancestor. This shared embryonic feature points to evolutionary connections, showcasing how diverse vertebrate species can arise from a single lineage through the process of evolution over millions of years. This observation also highlights the incredible process of embryonic development, where similar structures can emerge across different species, even when they ultimately develop into completely different organisms. It's a fascinating glimpse into the interconnectedness of life on Earth!