Across
- 4. Actions of an organism.
- 5. Heredity unit.
- 7. Traits enhance survival.
- 8. Evolution theorist.
- 10. New species formation.
- 13. Same period group.
- 15. Beneficial for survival.
- 16. Struggle for resources.
- 18. Passed traits.
- 19. DNA differences.
Down
- 1. Survival and reproduction ability.
- 2. Spread of species.
- 3. Survival of the fittest.
- 6. Gene to product process.
- 9. Gradual development.
- 11. DNA change.
- 12. Body functions.
- 14. Control others.
- 17. Organism feeding on another.
- 20. Organisms adjust to the environment.