biology

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Across
  1. 2. absence of oxygen
  2. 7. releases energy
  3. 12. energy to raise temperature
  4. 13. bring together
Down
  1. 1. plants use for energy
  2. 3. inside mitochondria
  3. 4. colorless odorless gas
  4. 5. without air
  5. 6. second stage of cell respiration
  6. 7. co2
  7. 8. energy from the sun
  8. 9. cant be created or destroyed
  9. 10. pathways
  10. 11. sugar breaking
  11. 14. electron carrier