Biology 0610 · IGCSE · Diseases and immunity

Diseases and immunity — practice question

Several features that protect the body from pathogens are shown. 1 mucus 2 skin 3 acid in the stomach 4 phagocytosis Which of these features can stop pathogens from entering body tissues?

  • A1, 2, 3 and 4
  • B1, 2 and 3 only
  • C2 and 3 only
  • D4 only

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