Biology B1NaturalDefences

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  • Created by: Sophia
  • Created on: 26-05-13 14:18
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  • Natural Defences
    • Antitoxins
      • Counteract toxins from bacteria antibodies
        • Antibodies
          • Attach to or kill pathogens
    • Swallow
      • Stomach acid kills
    • Inhale
      • Cilia produces mucous which microbes stick to
    • Skin
      • A barrier to cuts
      • Quickly clots and a scab forms
    • Vaccines
      • Weakened or dead form of a virus
        • Antibodies are then produced by your body
          • Your body remembers how to make them and then can easily destroy the virus if it infects your body


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