energy

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Across
  1. 7. A famous singer
  2. 8. chemical reaction in the body's cells
  3. 9. meat eater
  4. 10. animal being hunted
Down
  1. 1. plant and meat eater
  2. 2. plant lover
  3. 3. eats on dead organic material
  4. 4. prefix for 1000
  5. 5. animal doing the hunter
  6. 6. unit of mass