Biology 0610 · IGCSE · Sense organs

Sense organs — practice question

The diagram illustrates how the iris and pupil look under three different lighting conditions. Which row indicates the size of the eye’s pupil in each lighting condition?

  • Ano light: 1; moderate light: 2; bright light: 3
  • Bno light: 1; moderate light: 3; bright light: 2
  • Cno light: 2; moderate light: 1; bright light: 3
  • Dno light: 3; moderate light: 2; bright light: 1

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