In an automatic control system, receptor cells detect a change in an internal condition. Information passes from the receptors to the brain, and then from the brain to a gland. A medicine prevents information from reaching the gland, but it does not affect the receptors or the brain.
Explain the likely effect of the medicine on the control of the internal condition.
76 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.