O-LevelBiologyCoordination & Response5090/11 · Oct/Nov 2021 · Q201 Mark

Which biological process is represented in the diagram? [Figure 20]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aantagonistic action

Bdialysis

Cnegative feedback

Dreflex action

✓ Correct answer

C: negative feedback

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2021 Paper 1 Variant 1, question 20.

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