Ecosystems

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Across
  1. 2. cannot make food
  2. 4. 2nd trophic level
  3. 6. 4th trophic level
  4. 9. disturbance
  5. 11. living
Down
  1. 1. 3rd trophic level
  2. 3. levels of nourishment
  3. 4. bare rock
  4. 5. another word for producer
  5. 7. eats others
  6. 8. diagram
  7. 10. Non-living