Across
- 2. recognizable characteristics
- 3. surronding impact
- 11. similar function with a common ancestor
- 12. features of the past
- 14. similar features
- 15. species develop
- 16. competitive reproduction
Down
- 1. competitive advantage
- 4. similar function no common ancestor
- 5. disappearence of genes
- 6. reproductive success
- 7. seasonal movement
- 8. disguise
- 9. human impact
- 10. alteration in DNA
- 13. suiting an enviroment