metabolism

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Across
  1. 2. supported by evidence
  2. 5. breaking down the food
  3. 7. interacting parts
  4. 9. found in air
  5. 11. rearrangement of atoms
  6. 13. a scientific question
  7. 15. body part that takes oxygen
  8. 16. large molecules needed for life
  9. 17. building blocks of protein
  10. 18. energy storage molecule
  11. 19. group of atoms
Down
  1. 1. oxygen atoms
  2. 3. to prove
  3. 4. molecules that provide growth
  4. 6. releases energy
  5. 8. make things move or change
  6. 10. plants produce this
  7. 12. transportation of molecules
  8. 14. supports evidence