Across
- 2. Remains used to compare species
- 5. Name of Darwin's ship
- 7. Humans deciding what traits are helpful
- 8. Inherited characteristic that helps an organism survive
- 10. Ability to survive and reproduce
- 11. A change over time in a population
- 12. Results from mutations and is crucial to natural selection
- 13. Organisms best fit survive and reproduce most successfully
- 14. Different form/function but comprised of the same basic bones
Down
- 1. Structure that is no longer needed for survival
- 3. Change in a DNA sequence that results in variation
- 4. A group of organisms that can breed and produce fertile offspring
- 6. Author of "On the Origin of Species"
- 9. Same form/function but not closely related