A gland responds correctly when stimulated directly, but it does not respond after a receptor detects a change. Which component is most likely failing?
The pathway that carries information to or from the coordination centre.
The enzyme whose optimum conditions are maintained inside every body cell.
The internal condition that acts as the stimulus detected by the receptor.
The gland cell that produces the response when it is stimulated directly.
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.