为研究人工生态系统中大草履虫和栉毛虫间捕食关系的影响因素设计两组实验 实验一在培养液中依次加入大草履虫和栉毛虫得到种群数量变化曲线 如 Template




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tomski为研究人工生态系统中大草履虫和栉毛虫间捕食关系的影响因素设计两组实验 实验一在培养液中依次加入大草履虫和栉毛虫得到种群数量变化曲线 如 coloring