Across
- 5. An organism that mostly eats meat
- 6. Number of different types of organisms in an area
- 8. Populations of different species that live and interact in the same area
- 11. Earth's solid, outer layer
- 13. The gradual build-up of chemicals in an organisms body
- 15. Part of our planet, water, land, and air
- 16. System where living and non-living things interact with each other
Down
- 1. An organism that carries photosynthesis
- 2. Consumer that breaks down organic matter and releases the nutrients back into the ecosystem
- 3. Living, organisms
- 4. Environmental factor that prevents an increase in the number of organisms in a population
- 7. Converts nitrates into nitrogen gas
- 9. Species at risk of becoming endangered
- 10. Process plants use to produce carbohydrates
- 12. Large geographic region that contains similar ecosystems
- 14. Non-living, physical things