Across
- 3. An organism that lives on or in a host and causes harm
- 6. A diagram that shows feeding relationships in an ecosystem
- 7. A relationship where one benefits and the other is harmed
- 9. A relationship where both organisms benefit
- 10. Organisms that eat producers
- 11. Bacteria that convert ammonia into nitrates in the soil
- 13. The rule that only about ___% of energy transfers to the next level
- 16. Process where organisms release carbon dioxide into the air
- 17. Animals that eat both plants and animals
- 18. A single pathway of energy flow
- 19. Organisms that make their own food using sunlight
- 21. Type of symbiosis where clownfish and sea anemones interact
- 22. Example of mutualism: bees and ______
- 25. Animals that eat other animals
Down
- 1. Process by which plants make glucose and oxygen
- 2. Gas in the atmosphere that plants use for photosynthesis
- 4. A relationship where one benefits and the other is unaffected
- 5. A tick feeding on a dog is an example of this relationship
- 8. The organism that a parasite lives on
- 12. Organisms that break down dead matter
- 14. Process where bacteria convert nitrogen gas into usable forms
- 15. The amount of energy decreases as you move ______ the trophic levels
- 20. The first trophic level, made up of plants and algae
- 23. Energy source for most ecosystems
- 24. Top predators that have no natural enemies