O-LevelBiologyCoordination & Response5090/12 · Oct/Nov 2021 · Q201 Mark

After exercise, human body temperature often rises above normal. What will help to return the temperature to normal?

Aan increase in the fat layer under the skin

Bhormonal response causing shivering

Cpositive feedback mechanism

Ddilation of blood vessels in the skin

✓ Correct answer

D: dilation of blood vessels in the skin

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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 2, question 20.

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