This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'Rods and cones differ in all except \nSelect and explain. \nA. Signal transduction, B. Light sensitivity, C. Wavelength, D. Acuity', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In both rods and cones, the signal transduction mechanism is the same Rods are useful for dim/night vision, cones are used for bright/day vision Ref:: Ganong 25th ed/page 178', 'role': 'assistant'}]