Unit 1 Crossword (William Smith)

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Across
  1. 3. Northern forest biome with conifers
  2. 5. Cycle without a gaseous phase
  3. 10. Total mass of living matter
  4. 12. Diagram showing energy levels
  5. 13. Breaks down dead material
  6. 17. Level of feeding in a food chain
  7. 19. Water soaking into the ground
  8. 20. Cycle moving CO₂ through systems
  9. 23. One species hunts and eats another
  10. 26. Species used to assess ecosystem health
  11. 28. Tendency toward energy disorder
  12. 29. One species benefits, one is harmed
  13. 33. Converts nitrates to nitrogen gas
  14. 34. Feeds on dead organic matter
  15. 37. Symbiosis where both species benefit
  16. 38. Interacting system of living and nonliving things
  17. 40. Role and position in the environment
  18. 42. Makes its own food using sunlight
  19. 44. Long-term relationship between species
  20. 47. Forest with four seasons and broadleaf trees
  21. 50. Species with large ecosystem impact
  22. 51. Energy available to consumers after losses
  23. 52. Cycle involving fixation and denitrification
  24. 53. Eats other organisms for energy
Down
  1. 1. Where river meets the sea
  2. 2. Nonliving part of an ecosystem
  3. 4. Converts sunlight into chemical energy
  4. 6. Law stating energy can't be created or destroyed
  5. 7. Total amount of energy captured by producers
  6. 8. Complex network of food chains
  7. 9. Water that flows over land surfaces
  8. 11. Struggle for limited resources
  9. 14. Linear path of energy flow
  10. 15. Process converting N₂ to ammonia
  11. 16. Converts ammonia to nitrates
  12. 18. Cycle moving H₂O through ecosystems
  13. 21. Physical environment where species live
  14. 22. Rule stating energy transfer between levels
  15. 24. Hot, humid biome with high biodiversity
  16. 25. Long-term weather patterns in a region
  17. 27. Group of similar organisms that reproduce
  18. 30. Living part of an ecosystem
  19. 31. Reef ecosystem with high marine diversity
  20. 32. One species benefits, other unaffected
  21. 35. Nutrient uptake by organisms
  22. 36. Releases energy by breaking down food
  23. 39. Region with specific climate and life
  24. 41. Percent of energy transferred up a food chain
  25. 43. Measure of variety in life forms
  26. 45. Tropical grassland with scattered trees
  27. 46. Dry biome with sparse vegetation
  28. 48. Non-native and harmful species
  29. 49. Cold, treeless biome with permafrost