Across
- 6. All the populations of organisms living together in an environment
- 7. Returning a natural environment to its original condition
Down
- 1. All the individuals of the same kind living in the same environment
- 2. A community and its physical environment
- 3. A great variety of living things
- 4. All of the living and nonliving things that affect an organism
- 5. Waste products that damage an ecosystem