1.影响种群数量变化的内部因素和外部因素 1内部内素 �出生率和死亡率迁入率和迁出率直接决定种群数量的变化 �年龄组成可以预测种群 Template




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tomski1.影响种群数量变化的内部因素和外部因素 1内部内素 �出生率和死亡率迁入率和迁出率直接决定种群数量的变化 coloring