During exercise, skin arterioles dilate. Which explanation correctly links this response to a decrease in core body temperature?
Less blood flows near the skin, decreasing the transfer of thermal energy to the surroundings.
More blood flows near the skin, increasing the transfer of thermal energy to the surroundings.
Less sweat reaches the skin, increasing evaporation and transferring more thermal energy away.
More sweat enters the blood, decreasing evaporation and transferring less thermal energy away.
40 exam-style questions on AQA GCSE Biology 5.2 The human nervous system, covering 5.2.1 Structure and function, 5.2.2 The brain, 5.2.3 The eye, and 5.2.4 Control of body temperature. Each one has a worked solution and a mark scheme showing where the marks go.