Which statement distinguishes a receptor from an effector?
A receptor is always a gland, whereas an effector is always a nerve cell.
A receptor detects a stimulus, whereas an effector brings about a response.
A receptor processes information, whereas an effector detects a stimulus.
A receptor restores an optimum level, whereas an effector receives information.
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.