Across
- 2. a small single celled organism that cannot be seen to the human eye.
- 4. how many people live in an area.
- 7. The surrounding where plants and human live and operate.
- 8. Non-living things in the ecosystem.
- 9. Living things in the ecosystem
Down
- 1. resources that decrease the population.
- 3. largest population an area can hold without damaging the environment.
- 5. Organisms that feed on mold and mushrooms.
- 6. A superficial growth growing on decaying areas.
- 7. organisms that interact with the physical environment