energy flow in ecosystems

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Across
  1. 4. Outlines who eats whom
  2. 6. an orgamism that depends on autotroughs for food
  3. 7. an organism that breaks down dead materal
  4. 8. an organism that can make its own food
Down
  1. 1. consists of all food chains in an ecosystem
  2. 2. interacting organisms and the enviroment
  3. 3. bottom level of energy pyramid
  4. 5. an organism that eats other plants/animals for nutrition