Across
- 4. The best ecosystem can be
- 5. Poisoning the enviornment
- 6. nonliving factors in an environment
- 8. living factors in an ecosystem
- 9. Not supposed to be their
Down
- 1. A group of different species
- 2. Plant Matter
- 3. Spreads through contact
- 5. A group of a species
- 7. How many species an ecosystem can hold