Across
- 3. formation of new species
- 5. To become more fit to an environment.
- 8. same ancestor, but different function.
- 10. organs with no use.
- 11. same function, but different ancestor
- 13. everything is equal.
- 14. the study of embryo
- 15. no nucleus
- 16. survival of the fittest.
- 18. remains of an organism
- 19. father of evolution
Down
- 1. new living organisms.
- 2. variation of genetics
- 4. nucleus
- 6. studies fossils
- 7. related in many ways
- 9. unrelated
- 11. environmental influence
- 12. microscopic
- 17. changes in genetic structure.