Immune System

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Across
  1. 8. k
  2. 9. n
  3. 11. j
  4. 13. exposure to a disease organism triggers the
  5. 14. collaboration between cells and proteins that
Down
  1. 1. Macrophage
  2. 2. the circulatory system that carries cells
  3. 3. m
  4. 4. o
  5. 5. A germ that causes disease
  6. 6. h
  7. 7. l
  8. 10. k
  9. 12. h