Across
- 2. The variety of different plants and animals living in an area.
- 5. Relating to the relationships between living things and their environment.
- 6. An animal at the very top of a food chain, with no natural predators.
- 8. To protect something and prevent it from being damaged or destroyed.
Down
- 1. When a species has completely died out and no longer exists.
- 3. A community of living things and the environment they live in.
- 4. To bring a species back to an area where it previously lived.
- 7. Empty, barren and lacking life or activity.