Across
- 2. self feeder
- 5. Total amount of living matter in one trophic level
- 6. a group of ecosystems
- 7. Both benefit from the relationship
- 12. Two living things can not have the same niche
- 17. Feeds on dead animals and plants(dead matter)
- 18. A factor that depends on population size
- 20. Area that includes abiotic and biotic factors of an organism
Down
- 1. When a plant loses water through its leaves
- 3. Gets energy from only plants
- 4. Neither is helped or harmed in the relationship
- 8. The amount of tools and or resources in a certain place
- 9. Factor that affects everyone and it does not matter what the size of the population is
- 10. As trophic levels rise, the concentration of a harmful substance increases
- 11. When nitrates turn into nitrogen gas
- 13. able to produce fertile offspring
- 14. Multiple populations living in the same space
- 15. 10 miles
- 16. How nitrogen becomes a part of living tissue
- 19. Conditions in which an organism lives and uses to live