An African monkey has a DNA sequence that is 96.66% similar to a
human sequence. According to the molecular clock, about how long
ago did the common ancestor for African monkeys and humans
live?
| 2.5–3 million years ago | ||||||||||||
| 5–6 million years ago | ||||||||||||
| 13–16 million years ago | ||||||||||||
|
17–20 million years ago Humans and chimpanzees have a common ancestor that lived
Which description applies to a vestigial structure or trait?
|





