ecosystems

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Across
  1. 4. a system of interlocking and interdependent food chains.
  2. 7. organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy.
  3. 8. an animal that feeds on other animals.
  4. 9. an animal that feeds on plants.
Down
  1. 1. an animal or person that eats a variety of food of both plant and animal origin.
  2. 2. a series of organisms each dependent on the next as a source of food.
  3. 3. organism that breaks down dead organic material
  4. 5. a biological community of interacting organisms and their physical environment.
  5. 6. an animal that naturally preys on others.