Which statement correctly distinguishes a receptor from an effector?
A receptor contracts a muscle, while an effector converts a stimulus into an impulse.
A receptor produces an impulse, while an effector detects a change in the environment.
A receptor secretes a hormone, while an effector transmits impulses into the spinal cord.
A receptor detects a stimulus, while an effector produces a coordinated response.
40 exam-style questions on AQA GCSE Biology 5.2 The human nervous system, covering 5.2.1 Structure and function, 5.2.2 The brain, 5.2.3 The eye, and 5.2.4 Control of body temperature. Each one has a worked solution and a mark scheme showing where the marks go.