Ecology ll

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Across
  1. 3. the amount of carbon used
  2. 6. an external barrier in cells
  3. 8. movement of a substance without energy
  4. 13. the output is ATP
  5. 14. process in which plants make their own food
  6. 15. the process of carbon
  7. 16. the passage of water through a membrane
  8. 18. same salt content as blood and cells
  9. 19. ex: Carbon, Methane...
  10. 20. contains less salt than blood and cells
Down
  1. 1. the process of phospourous
  2. 2. adenosine triphosphate
  3. 4. the process of nitrogen
  4. 5. movement of a substance with energy
  5. 7. cells break down sugar in absencse of oxygen
  6. 9. substances move from high to low areas
  7. 10. a biological occurence where the output is negative or positive
  8. 11. contains more salt than blood and cells
  9. 12. uses oxygen to make fuel
  10. 17. the process of water