Across
- 2. adapt or die
- 7. best adjusted
- 10. we pick the traits
- 11. Darwin published a theroy about this in 1859
- 13. separated from the rest
- 14. study of embroys
- 15. deals with geographical distribution
Down
- 1. similar in function but not related
- 3. resulting from changes in systems
- 4. similar physical features
- 5. similar in diffrent ways
- 6. does nothing
- 8. becoming more distant
- 9. population severely reduced
- 12. reproductive success