Yellowstone National Park

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Across
  1. 2. they make food for others
  2. 4. they get hunted
  3. 5. a system of interlocking and interdependent food
  4. 7. they eat meat
  5. 8. a hierarchical series of organisms each dependent on the next as a source of food
  6. 9. not derived from living organisms
  7. 10. they eat meat and plants
Down
  1. 1. they eat plants
  2. 3. they break apart materials
  3. 4. they hunt
  4. 6. to survive on
  5. 7. they eat