This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'When two different chemical set on two different receptors and their response is opposite to each other on the same cell,this is called as \nSelect and explain. \nA. Physiological antagonism, B. Chemical antagonism, C. Reversible antagonism, D. Competitive antagonism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-KDT 6/e p56 Physiological agonism describes the action of a substance which ultimately produces the same effects in the body as another substance--as if they were both agonists at the same receptor--without actually binding to the same receptor', 'role': 'assistant'}]