In an investigation, a person's skin temperature is held constant while the temperature of the blood reaching the hypothalamus increases slightly. Sweat production increases.
Which conclusion is supported by this observation?
Skin receptors must detect a rise before sweat production can increase.
The hypothalamus can coordinate a response to a change in blood temperature.
Sweat glands detect blood temperature without receiving a coordinated signal.
The epidermis can coordinate a response without information from the brain.
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.