rat island

12345678910111213141516
Across
  1. 2. recognizable characteristics
  2. 3. surronding impact
  3. 11. similar function with a common ancestor
  4. 12. features of the past
  5. 14. similar features
  6. 15. species develop
  7. 16. competitive reproduction
Down
  1. 1. competitive advantage
  2. 4. similar function no common ancestor
  3. 5. disappearence of genes
  4. 6. reproductive success
  5. 7. seasonal movement
  6. 8. disguise
  7. 9. human impact
  8. 10. alteration in DNA
  9. 13. suiting an enviroment