Across
- 3. sequence of DNA that codes for a trait
- 6. changes in DNA
- 9. the process by which traits improve an organisms chance of survival
- 11. the seasonal movement of organisms into and out of area
- 12. a heritable trait that increases and individual's fitness
- 13. change over time
- 14. biological evolution that occurs by chance
Down
- 1. the theory of biological evolution
- 2. the process by which new species are generated
- 4. the disappearance of species from earth
- 5. the degree to which an organism can reproduce successfully in its environment
- 7. the process of selection conducted under human direction
- 8. inherits traits from parents
- 10. a change or difference in condition, amount, or level typically with certain limits
- 15. the fact of state of living or having objective reality