Across
- 4. group of similar organisms
- 6. ecosystem that has been partly destroyed that still have remnants of old ecosystem
- 8. ecosystems that maintain constant levels
- 9. ability of organism to survive changes in an environment
Down
- 1. scientist who studies relationship between organisms and their environment
- 2. organisms that live in an environment that they did not live in before
- 3. ability of organism to survive more easily in a shared environment
- 5. all ecosystems on the earth
- 7. environment where creature lives