Sustainable Ecosystems

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Across
  1. 3. / Living organisms on land
  2. 5. / Pure substances that cannot be broken down into simpler substances
  3. 6. fuels / Remains of an organism
  4. 8. / Interactions of a species with its ecosystem form this
  5. 11. / Plant sweat
  6. 15. / No trees, but small shrubs, hardy grasses
  7. 17. / When water seeps from ground to ground water
  8. 18. / Non-living
  9. 19. / A person who studies ecology
  10. 21. / Study of the interaction between organisms and their environment
  11. 22. / Large naturally occurring economy
  12. 25. / Living
  13. 26. / Made up of the interactions between living and non-living things
  14. 27. / Water
  15. 29. / A complex and self-regulating system
  16. 30. / Snow, rain, sleet, freezing rain, hail
  17. 31. / Few trees, covered in grasses and shrubs
  18. 33. / How long living organisms can continue to interact and reproduce
  19. 34. / Populations of different species in an area
  20. 37. / Cows
  21. 38. / Air
  22. 39. / Needle and cone-bearing trees
  23. 41. / Dew/frost to air
  24. 44. / Physical environment of an organism
  25. 48. / C
  26. 49. / Group of the same species
  27. 50. / Plants and fungi
Down
  1. 1. / Sweat
  2. 2. / Group of similar organisms
  3. 4. / Lose leaves in autumn
  4. 7. / Glucose + oxygen ----> carbon dioxide + water + energy
  5. 9. / Atlantic Ocean
  6. 10. / Lake Ontario
  7. 12. / Carbon Dioxide + water + light ----> Glucose (sugar) + oxygen
  8. 13. / Vulture (eat dead flesh)
  9. 14. / Grass
  10. 16. / Humans
  11. 20. / Converted into usable N by legumes and bacteria
  12. 23. / Another name for taiga forests
  13. 24. / Land
  14. 28. / Fungus
  15. 32. / N
  16. 35. / Animals
  17. 36. / Algae and microoranganisms
  18. 39. / Spruce and fir
  19. 40. / Biosphere
  20. 42. / A substance an organism uses to build and repair the cells of its body
  21. 43. / Mountain water to ground water
  22. 45. / Composed of all living things on Earth and the physical environment that surrounds them.
  23. 46. / Underground lakes
  24. 47. / H20