Natural Resources

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Across
  1. 3. interaction between two different organisms living in close physical association, typically to the advantage of both.
  2. 4. the preying of one animal on others
  3. 8. an animal that naturally preys on others
  4. 9. a hierarchical series of organisms each dependent on the next as a source of food.
  5. 11. the regions of the surface occupied by living organisms.
  6. 12. not living
  7. 13. a biological community of interacting organisms and their physical environment.
Down
  1. 1. living
  2. 2. the natural home or environment of an animal, plant, or other organism.
  3. 5. the surroundings or conditions in which a person, animal, or plant lives or operates.
  4. 6. an animal that is caught and killed by another for food.
  5. 7. materials or substances such as minerals, forests, water, and fertile land
  6. 10. a comfortable or suitable position in life or employment.