Across
- 5. long lasting close relationship at least one benefits
- 7. species divided to specialize
- 9. changes in dna
- 10. two or more species benefit
- 12. an organisms use of resources and functional role
- 13. disappearance of a species from earth
- 14. change over time
- 15. when one benefits and the other is not effected
- 17. ability to survive and reproduce under changing conditions
- 19. biological evolution that occurs by chance
Down
- 1. improvement of survival passed to future generations
- 2. only one benefits from other
- 3. process by new species are generated
- 4. 2 species evolve in response to each other
- 6. when an animal feeds on a plant
- 8. heritable trait that increases fitness
- 11. process of selecting traits
- 16. process of hunting and killing another species
- 18. how reproductively successful an organism in its environment
- 19. sequence of dna that codes a trait