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Biology · May / June 2019 · Paper 11 · Question 23

5090Mammalian sense organs

A girl is waiting at a bus stop and is watching a bus travelling towards her. What happens to her eyes as the bus gets closer?

  1. Aciliary muscle: contracts less; change in shape of lens: less rounded; change in suspensory ligaments: less tension
  2. Bciliary muscle: contracts less; change in shape of lens: more rounded; change in suspensory ligaments: more tension
  3. Cciliary muscle: contracts more; change in shape of lens: less rounded; change in suspensory ligaments: more tension
  4. Dciliary muscle: contracts more; change in shape of lens: more rounded; change in suspensory ligaments: less tension

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Correct answer: D. ciliary muscle: contracts more; change in shape of lens: more rounded; change in suspensory ligaments: less tension

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