CH.5 How Ecosystems Work

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Across
  1. 7. breaks down dead organisms
  2. 10. example humans, bears, pigs, insects
  3. 12. all the living things in an environment
  4. 13. occur in areas that previously did not support life
  5. 14. occurs in areas where an ecosystem has previously existed
  6. 17. make up cells and the only element not cycled through air
  7. 19. gets energy by eating other things
  8. 20. build proteins that is used to build cells
  9. 21. is a gradual process of change and replacement of some or all of the species in a community
  10. 22. anything that can make its own food
Down
  1. 1. can fix atmospheric nitrogen into a useful form
  2. 2. results from the excess build up of nitrogen and phosphorus in an aquatic ecosystem
  3. 3. example cows, sheep, deer, and zebra
  4. 4. includes carbon dioxide, water vapor, methane, and other gases that contributes to global warming
  5. 5. the final and stable community
  6. 6. a group of the same species that live together
  7. 8. species that begin the process of succession
  8. 9. 6CO2+6H2O+solar energy-->C6H12O6+6O2
  9. 11. example lion, hawks, whales, spiders
  10. 15. examples are sun, water, temperature, wind, rock
  11. 16. essential component of proteins, fats, and carbohydrates which make up all organisms
  12. 18. an individual living thing