O-LevelBiologyCoordination & Response5090/11 · May/June 2014 · Q211 Mark

A man stands 10 metres away from a sign and can see it clearly. He walks towards the sign and stops 0.5 metres from it. Which changes occur in his eyes so that the sign is still in focus?

Acontract slacken thicker more

Bcontract tighten thinner less

Crelax slacken thinner less

Drelax tighten thicker more

✓ Correct answer

A: contract slacken thicker more

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2014 Paper 1 Variant 1, question 21.

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