Nature of Ecosystems

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Across
  1. 2. complicated relationships that exist in natural ecosystems
  2. 3. along with bacteria, it shows the food for larger decomposers
  3. 4. feed on dead organic material in soil
  4. 7. describes the continuous movement of water on and below the earths surface
  5. 8. feed on other animals
  6. 9. when producers absorb solar energy
  7. 10. through which chemicals move along food chains, perhaps never entering an exchange pool
  8. 11. sedimentary cycle that consists of the movement of phosphorus from rocks to soil & sea
  9. 13. with every transformation some energy is degraded
  10. 17. make their own food
  11. 18. producers take in inorganic nutrients from the environment
  12. 20. feed on other organisms
  13. 21. a source normally unavailable to producers such as fossilized remains, rocks, and deep-sea sediments
  14. 22. a community along with its physical and chemical environment.
Down
  1. 1. feed on solely plants or algae
  2. 2. energy cannot be created or destroyed
  3. 5. exemplified by the phosphorus cycle
  4. 6. exemplified by the carbon and nitrogen cycles
  5. 12. both land and aquatic organisms exchange carbon dioxide with the atmosphere
  6. 14. feed on plants and animals:example. Humans
  7. 15. a source from which organisms do normally take chemicals, such as the atmosphere
  8. 16. describes the continuous movement of nitrogen from atmosphere to the ground & sea
  9. 19. shows the aboveground plant material