Across
- 2. Any animal, plant, or single-cell living in the ecosystem.
- 3. organism not native to a specific location, tends to damage ecosystem.
- 6. The nonliving parts of an ecosystem.
- 8. competition among different species.
- 10. Source or supply from which benefit is produced.
- 11. Essential to all life on Earth.
- 12. The living parts of an ecosystem.
Down
- 1. competition among the same species.
- 4. Organism's role in the environment.
- 5. two organisms of different species exist in a relationship that benefits each other.
- 7. Something that is needed by organisms and is not infinite in the environment.
- 9. Organism that primarily obtains food by the consuming of other organisms.