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