A person drinks a large volume of water. Which statement best links this change to homeostasis?
Effectors detect a change in water level and receptors directly restore the optimum level.
Enzymes detect a change in water level and coordination centres remove all the water.
Coordination centres prevent water level changing by stopping water entering the body.
Receptors detect a change in water level and effectors help restore the optimum level.
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.