biogeochemical cycling and energy flow

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Across
  1. 5. burning of material, releases CO2
  2. 6. nonliving
  3. 8. breaking down of food energy to make usable energy (ATP)
  4. 11. living
  5. 13. to make something part of self
  6. 16. bacteria take NHx or NOx and convert it to nitrate or nitrite (NO2 or NO3)
  7. 17. process that takes in CO2 and water and converts it to chemical energy
  8. 19. the only truly closed system
  9. 21. producer that uses CO2 and H2S and water to make sugars
  10. 23. all the paths that matter and energy take through the biosphere
  11. 24. one step in a food chain or food web
  12. 25. what humans burn that increases CO2 in the atmosphere
  13. 26. water cycle
  14. 27. organism that eats plant and animal matter
  15. 28. producer
  16. 29. major chemical cycle needed for nucleic acids and proteins
Down
  1. 1. major chemical cycle that needs cellular respiration and photosynthesis
  2. 2. organism that breaks down organisms/ recycles nutrients for plants
  3. 3. to burn something
  4. 4. bacteria or lightning take N2 and bond it to Oxygen or Hydrogen
  5. 7. organism that feeds on dead or decaying matter
  6. 9. the Earth is an open system with regards to this
  7. 10. producer that uses light to make sugars from CO2 and H2O
  8. 12. something that if you have too much or too little of it, the population suffers
  9. 14. the Earth is a closed system with regards to this
  10. 15. ecological pyramid that show the amount of mass that occurs at each trophic level
  11. 17. major chemical cycle needed for nucleic acids and ATP
  12. 18. consumer
  13. 20. one path that matter and energy take through the biosphere
  14. 22. ecological pyramid that shows how many organisms exist at each trophic level