生态学家对某草原生态系统中的植物鼠类和食鼠动物的生物数量进行较长时间的跟踪调查后得到如下图所示的生物数量变化曲线请回答下列问题1从 Template




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tomski生态学家对某草原生态系统中的植物鼠类和食鼠动物的生物数量进行较长时间的跟踪调查后得到如下图所示的生物数量变化曲线请回答下列问题1从 coloring