Across
- 4. When a species completely dies out.
- 5. Blending in with the surroundings to avoid being seen.
- 7. When animals with the best traits for their environment survive and have babies.
- 9. When there are too many animals and not enough resources.
- 10. A feature that helps an animal survive in its environment.
Down
- 1. All the different traits in a group of animals.
- 2. When one animal hunts and eats another.
- 3. Slow changes in a species to help it survive better.
- 6. Random changes in traits in a group over time.
- 8. The most animals an environment can support.