Which piece of evidence provides the strongest support for the theory that all living things evolved from a common ancestor? Charles Darwin, for 7 grade

There are many pieces of evidence provided as strong evidence: fro example the Comparative anatomy of many species. This evidence is based on compares of the the skeletons of humans, cats, whales, and bats, illustrating how similar they are even though these animals live unique lifestyles in very different environments. Another piece of evidence is biochemistry of all living things on Earth. This is so because is incredibly similar. This shows that all of Earth’s organisms share a common ancestry.