Ecosystem Crossword

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Across
  1. 3. levels levels of energy
  2. 6. non-living
  3. 9. diagram showing energy flow
  4. 11. first to colonize
  5. 13. turning from liquid into vapor
  6. 15. an organism that can not produce its own food
  7. 16. the ability to do work
  8. 17. eats plants and meat
  9. 19. renewable organic material
  10. 20. the measure of efficiency
Down
  1. 1. decomposes organic material
  2. 2. A community of interacting organisms
  3. 4. organisms use sunlight to convert water and carbon dioxide
  4. 5. eats meat
  5. 7. living
  6. 8. rain, snow, sleet, hail
  7. 10. eats plants
  8. 12. eat primary consumers
  9. 14. makes their own food
  10. 18. rely on eating other organisms