O-LevelBiologyRespiration5090/11 · Oct/Nov 2015 · Q181 Mark

Which changes occur as a person exercises?

Adepth of breathing decreases, breathing rate decreases

Bdepth of breathing decreases, breathing rate increases

Cdepth of breathing increases, breathing rate decreases

Ddepth of breathing increases, breathing rate increases

✓ Correct answer

D: depth of breathing increases, breathing rate increases

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Topic: Respiration, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2015 Paper 1 Variant 1, question 18.

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