Across
- 3. A trait or behaviour that aids an organisms survival
- 4. Ecosystems maintaining their structure, ensuring survival for future generations
- 7. The process of change in species over time
- 9. A community of organisms
- 10. The complete disappearance of a species on earth
Down
- 1. A difference in traits and characteristics
- 2. A specific environment where an organism lives
- 5. A group of animals
- 6. The variation of life in all its form
- 8. An individual living thing