Biology 0610 · IGCSE · Diseases and immunity

Diseases and immunity — practice question

The body has several different defences against pathogens. 1 antibodies 2 hairs in the nose 3 mucus 4 skin Which defences stop pathogens from reaching the alveoli during inhalation?

  • A1, 2, and 3
  • B2, 3, and 4
  • C2 and 3 only
  • D2 only

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