Biology 0610 · IGCSE · Excretion in humans

Excretion in humans — practice question

A dye is injected into the blood supply of a patient’s kidneys. It then shows up in his excretory system, as shown. Which part is obstructed?

  • Athe kidney
  • Bthe ureter
  • Cthe bladder
  • Dthe urethra

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