A student claims that vasoconstriction produces heat in the same way as shivering.
Which statement correctly assesses this claim?
Both responses mainly increase respiration in skeletal muscles to release more heat.
Vasoconstriction mainly conserves existing heat, whereas shivering increases heat production.
Both responses mainly reduce the transfer of heat from blood to the skin surface.
Vasoconstriction mainly increases heat production, whereas shivering conserves existing heat.
44 exam-style questions on Edexcel GCSE Biology 7.3 Homeostasis and thermoregulation, covering 7.3.1 Importance of a constant internal environment, 7.3.2 Importance of homeostasis, 7.3.3a Thermoregulation via the skin and hypothalamus, and 7.3.3b Vasoconstriction and vasodilation in thermoregulation. Each one has a worked solution and a mark scheme showing where the marks go.