Across
- 2. A complex network of many connected food chains.
- 3. An organism that can produce its own food (like plants).
- 5. A top-level hunter that has no natural predators.
- 8. An organism that gets energy by eating other organisms.
- 11. Higher-level predators that eat secondary consumers.
- 12. Organisms that eat producers (usually herbivores).
- 14. A simple line showing who eats whom.
- 15. The ability to do work; in ecosystems, it often comes from the sun.
Down
- 1. Animals that eat primary consumers.
- 4. Animals that hunt and eat other organisms.
- 6. The position an organism has in a food chain or web.
- 7. An organism that makes its own food, usually using sunlight.
- 9. A community of living and nonliving things interacting in an area.
- 10. Organisms that break down dead plants and animals into nutrients.
- 13. The movement of energy from one organism to another.