Across
- 4. similar structures, function in similar enviroments
- 8. similar DNA and amino acid sequences
- 10. similar early development
Down
- 1. a body part that was useful back then but isn't useful today
- 2. remains or traces of organisms from the past
- 3. the process where organisms better adapted to their enviroment
- 5. similar anatomy from common ancestors
- 6. the study of fossils
- 7. characteristics in related species can have underlying similarity even though functions may differ
- 9. the change in frequency randomly