Across
- 4. - An animal that hunts other animals.
- 6. - Conversion of ammonium to nitrate by bacteria.
- 9. - When there are twoo many of one species for the ecosystem to handle.
- 11. - The process plants use to convert sunlight into energy.
- 12. - An animal hunted by other animals for food.
- 13. - An organism that makes its own food, often through photosynthesis.
- 15. - Process of liquid water turning into vapor.
- 16. - Conversion of nitrate back to atmospheric nitrogen.
- 19. - Eats only plants.
Down
- 1. - The process of converting food into energy, CO2, and water.
- 2. - A key abiotic factor for photosynthesis.
- 3. - The act of eating plants.
- 5. - A relationship where both organisms benefit.
- 7. - A gas required for respiration. It is produced by plants.
- 8. - An organism that eats other organisms for energy.
- 10. - Process of water vapor turning into liquid.
- 14. - Eats only meat.
- 17. - Eats both plants and meat.
- 18. - A place where an organism lives.