O-LevelBiologyCoordination & Response5090/12 · May/June 2022 · Q211 Mark

The diagram shows a cross-section of the human skin. Which structures are involved in maintaining a constant body temperature?

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A1 and 2 only

B1, 2, 3 and 4

C2 and 3 only

D4 only

✓ Correct answer

B: 1, 2, 3 and 4

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2022 Paper 1 Variant 2, question 21.

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