chapter 2 vocab

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Across
  1. 5. an organism that obtains energy
  2. 6. in a series of events an organism eats another organism
  3. 9. the conversion of free nitrogen to usable nitrogen
  4. 11. frozen soil
  5. 14. feeds off the body of dead organisms
  6. 17. energy that move from one feeding level to another
  7. 18. eats only animals
  8. 19. below the low tide is a region of shallow water
  9. 20. the continuous movement of water
Down
  1. 1. makes its own food
  2. 2. is a group of land ecosystems
  3. 3. break down waste and dead organisms
  4. 4. an organism that is taken to a new place
  5. 7. between the highest tide and the lowest tide
  6. 8. the study where organisms live
  7. 10. consists of many overlapping food chains
  8. 12. the movement of organisms from one place to another
  9. 13. the salt water meets the fresh water
  10. 15. eats both plants and animals
  11. 16. eats only plants