Bio Unit 1

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Across
  1. 3. A planned forest fire to restart the ecosystem
  2. 5. Someone in charge of prescribed fires.
  3. 8. The number of organisms an ecosystem can hold.
  4. 11. The first stage of an ecosystem's restoration after a fire; lichens and fungi.
  5. 12. The act of bringing back or healing an ecosystem.
  6. 13. The third stage of an ecosystem after a fire; small trees and shrubs and less grass.
Down
  1. 1. A foreign organism that overtakes an environment once introduced.
  2. 2. The number of species in an area.
  3. 3. A rock covered land with no soil; dry and barren
  4. 4. The hierarchy of power in an ecosystem
  5. 6. A region in nature where all the organisms work together.
  6. 7. The final stage of an ecosystem after a fire; large trees and medium trees, little to no grass.
  7. 9. The second stage of an ecosystem's restoration after a fire; grass and shrubs growing.
  8. 10. A soil-covered land with no organisms; devoid of life.