Question

"bacteria first appear in the fossil record about 3.5 billion years ago. humans appeared in the fossil record only a few million years ago. given this, which group would you say is more highly evolved?"

Answer 1

Humans are more highly evolved as the human taxonomic group has undergone more evolutionary changes. If we consider that the first organisms were similar to bacteria, it would mean that existing bacteria have changed very little since life first began. The human lineage however has seen dramatic changes in life form from bacteria to multicellular organisms and so on to progressively more complex forms.