Respiration Crossword

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Across
  1. 2. /2 or more things added together in a chemical reaction
  2. 3. /often mixed up with respiration
  3. 5. reaction / respiration is a ____________
  4. 6. /respiration and ___________ are similar
Down
  1. 1. /_____ respiration produces energy and oxygen
  2. 2. /happens in every cell in your body
  3. 4. /produced by combustion but not respiration
  4. 7. /mixes with glucose to produce energy