A cat sees a mouse and jumps towards it.
Which statement identifies the stimulus, the receptor and the effector?
stimulus: the mouse moving; receptor: leg muscles; effector: retina
stimulus: the retina; receptor: light from the mouse; effector: brain
stimulus: light from the mouse; receptor: brain; effector: leg muscles
stimulus: light from the mouse; receptor: retina; effector: leg muscles
135 exam-style questions on OCR GCSE Biology 3.1 Coordination and control – the nervous system, covering 3.1.1 Structure of the nervous system, 3.1.2 Coordinated response, 3.1.3 The reflex arc, 3.1.4 Structure of the eye, 3.1.5 Defects of the eye, 3.1.6 Structure and function of the brain, 3.1.7 Difficulties of investigating brain function, and 3.1.8 Limitations in treating nervous system damage. Each one has a worked solution and a mark scheme showing where the marks go.