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Across
  1. 2. multiple food chains combined
  2. 5. autotroph
  3. 7. a pathway showing energy transfer
  4. 8. relations of organisms to one another and to their physical surroundings.
  5. 9. producer consumers, and decomposers
  6. 10. a biological community of interacting organisms and their physical environment.
Down
  1. 1. animal that has no preditors in their ecosystem
  2. 3. animal that eats plants and animals
  3. 4. organisms that decompose
  4. 6. heterotroph