Across
- 2. consumer consumer that eats other consumers
- 5. total mass of organisms in an area
- 9. change from liquid to gas
- 12. pyramid, a diagram showing energy transferred in the ecosystem
- 15. conversion of ammonia to nitrates
- 16. process of producing energy in cells
- 18. consumer consumer that
- 19. organisms that feed on detritus
- 20. species, first organisms to colonize an area
Down
- 1. change from gas to liquid
- 3. organisms that produce their own food
- 4. levels levels in a food chain
- 6. consumer that eats only meats
- 7. nonliving components of an ecosystem
- 8. conversion of nitrates back to nitrogen gas
- 10. consumer that eats both plants and animals
- 11. organism that uses chemicals for energy
- 13. organisms that rely on others for energy
- 14. the ability to do work or cause change
- 17. living components of an ecosystem