Across
- 7. Eats both plants and meat.
- 9. A food _____________ is all of the food chains in an ecosystem.
- 11. A global warming gas that cows... FART!
- 13. Eats only plants/producers.
- 15. A relationship where both individuals benefit (+, +)
- 16. A harmful organism that lives in or on another (+, -)
- 17. The _______________ level indicates an organism’s position on the energy pyramid.
- 20. Global CO2 levels rise in the winter because there are no ______________ on the trees.
- 22. Only _______ percent of the energy of one trophic (feeding) level is passed on to the next level.
- 23. Eats; same as heterotroph.
- 24. Occurs when the niches of two organisms overlap (-, -)
- 25. Feeds on the waste (or dead things) of an ecosystem.
Down
- 1. Burning fossil fuels and trees has lead to an imbalance in the ________________ cycle.
- 2. Carbon dioxide acts like a _________________, warming the planet.
- 3. If we want to use food resources in the most efficient way to feed the most people, humans should be _________________.
- 4. Part of the carbon cycle; process where plants remove CO2 from the atmosphere and make glucose.
- 5. A relationship where one organism benefits while the other is unaffected (+, 0)
- 6. A kind of detrivore that includes bacteria and fungi.
- 8. An organism that captures, kills, and eats another(+, -)
- 10. A food ______________ is a path of feeding relationships.
- 12. Literally means “self food”; same as a "producer".
- 14. Carrying _______________ is the maximum number of animals that the environment can support
- 18. Literally means “other food”; same as consumer.
- 19. The _________________ cycle is controlled by bacteria.
- 21. Creates its own food through photosynthesis or chemosynthesis; same as autotroph.
- 26. Consumers get nitrogen by _______________ plants or the animals that ate the plants.