Cells!!!!

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Across
  1. 5. Bodyguard
  2. 6. Builders
  3. 8. Energy
  4. 9. Break down food
  5. 10. Holds things in place
Down
  1. 1. water
  2. 2. The brain
  3. 3. protect the cell
  4. 4. (ER)
  5. 7. Energy