Energy Flow / Matter Flow

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Across
  1. 4. chain, a simple path showing how energy moves from one organism to another
  2. 6. an organism that eats other organisms
  3. 8. the breaking down of dead organisms
  4. 11. plants taking in nitrogen from soil
  5. 12. fixation, the process where bacteria change nitrogen into usable form
  6. 15. an organism that breaks down dead plants and animals
  7. 17. an organism that makes its own food using sunlight
  8. 18. a gas needed for growth and proteins
  9. 19. the process of releasing carbon dioxide
  10. 20. a consumer that eats both plants and animals
Down
  1. 1. the burning of fuels that releases carbon dioxide
  2. 2. the process where bacteria return nitrogen to the air
  3. 3. the process where plants make food using sunlight
  4. 5. a consumer that eats only plants
  5. 7. web, a network of many connected food chains
  6. 9. substances organisms need to live and grow
  7. 10. a consumer that eats only animals
  8. 13. tiny organisms that help change nitrogen
  9. 14. fuels, fuels like coal, oil, and gas formed from dead organisms
  10. 16. dioxide, a gas in the air used by plants