Across
- 1. Ability to survive and reproduce
- 3. Preserved remains of organisms
- 5. Process favoring helpful traits
- 7. Selection favoring one extreme
- 9. Trait helping survival
- 10. Shared evolutionary history
Down
- 2. Change in species over time
- 4. Formation of new species
- 6. Selection favoring average traits
- 8. Selection favoring both extremes