Bio: Crossword

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Across
  1. 1. ability to withstand a type of disease
  2. 3. to ptevent a person from getting a type of sickness such as TB
  3. 5. Cells secrete chemicals called cytokines
  4. 7. a flexible airway that is supported by cartillage
  5. 9. process by which large particles are taken up by cells, in the form of vacuoles
  6. 11. is a rigid, but flezible supporting matetial containing high fibres
  7. 12. the extent to which a pathogen is able to cause disease or damage
  8. 14. stimulate macrophage to engulf pathogens and dead and infected cells
  9. 15. is a tissue which is capable of contraction, but which is not undet voluntary control
Down
  1. 2. kill body cells that are infected by non self material
  2. 4. globular proteins also known as immunoglobulins
  3. 6. provide flexibility dyring ventilation
  4. 8. type of medicine such as penicillin
  5. 10. disease that is always present
  6. 13. have long, thin stems and rounded tops