Across
- 3. Process where beneficial traits become more common over time.
- 4. The amount of salt in water or soil.
- 6. Non-native species that spread and harm ecosystems.
- 7. Study of how species live and spread on islands.
- 8. An organism's ability to survive and reproduce.
- 9. Organisms that can live in many different conditions.
Down
- 1. A trait that helps an organism survive and reproduce.
- 2. Rapid evolution of many species from a common ancestor.
- 4. Organisms that survive in a narrow range of conditions.
- 5. The environmental limits an organism can survive within.