Biology 5090 · O Level · Mammalian sense organs

Mammalian sense organs — practice question

The diagram shows a cross-section of the eye. Which two structures are used to focus light rays on the retina?

  • AP and Q
  • BP and R
  • CQ and R
  • DQ and S

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI