Biology - Biomes

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Across
  1. 3. Dark
  2. 4. Land
  3. 6. Unique
  4. 7. Crowding
  5. 8. contamination
  6. 10. Beginning
  7. 14. 1st
  8. 16. Variety
  9. 17. Region
  10. 19. Heating
  11. 20. Intruder
  12. 21. Competition
Down
  1. 1. Clearing
  2. 2. Symbiosis
  3. 5. Recovery
  4. 9. light
  5. 11. Thermal
  6. 12. Water
  7. 13. Stable
  8. 15. Mixing
  9. 18. Network