Biology 0610 · IGCSE · Diseases and immunity

Diseases and immunity — practice question

The graph illustrates how an antibiotic treatment affects bacterial populations in the blood. What conclusion can be drawn from the graph?

  • AAntibiotics are effective against viral and bacterial infections.
  • BAntibiotics cause meiosis in bacteria.
  • CAntibiotics take ten days to kill all bacteria.
  • DBefore the start of antibiotic treatment the bacterial population was rising.

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