A student wanted to find out whether a person's core body temperature changes during the day. The student measured one person's core body temperature every two hours for 12 hours.
Give the independent variable in this investigation.
Give one variable the student should have controlled.
The student concluded: 'Core body temperature is exactly the same all day.' The student's readings ranged from 36.6 °C to 37.2 °C. Explain why the student's conclusion is not correct.
40 exam-style questions on AQA GCSE Biology 5.1 Homeostasis, covering 5.1 Homeostasis. Each one has a worked solution and a mark scheme showing where the marks go.