Honors Biology - Ecology

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Across
  1. 2. On a pyramid, the level of consumer with the greatest amount of energy.
  2. 6. Organisms that recycle dead organisms and waste.
  3. 7. ____ resource. Oil (fossil fuels) would be an example of this.
  4. 8. A group of organisms of the same species living in the same environment.
  5. 11. ___ development is the way of using natural resources without depleting them and without causing environmental harm.
  6. 14. Converts nitrogen in the air into nitrates.
  7. 17. All the physical aspects of the environment.
  8. 18. Cannot produce its own food.
  9. 20. When nutrients cause algae blooms and a lack of oxygen in lakes or oceans.
  10. 21. Where living organisms interact with the physical environment.
  11. 23. Habitat destruction often causes this.
  12. 25. What trophic level has the greatest amount of energy?
  13. 26. Organisms that grow on other organisms without harming them.
  14. 28. A greenhouse gas.
  15. 30. Many food chains interconnected.
Down
  1. 1. Floating aquatic microscopic plants.
  2. 3. When nitrogen oxides and sulfur oxides mix with precipitation.
  3. 4. The growth curve for humans.
  4. 5. For example: producer --> first order consumer --> 2nd order consumer, etc.
  5. 9. Light, rain, temperature, predators, air.
  6. 10. The build up in concentration of a substance as it moves form animal to animal in a food chain.
  7. 12. Photosynthesis, respiration, burning of fossil fuels.
  8. 13. All living and dead organic matter in a given area.
  9. 15. Decaying organic matter.
  10. 16. Relationship in which one organism benefits - the other is unaffected.
  11. 19. ___ diversity, # of different organisms living in a habitat.
  12. 22. Feeding positions on a food chain are called ___ levels.
  13. 24. Carrying ____ is the # of organisms an ecosystem can hold.
  14. 27. The amount of energy that travels to the next trophic level is ____%.
  15. 29. Special role or function an organism has in its ecosystem.