下列关于种群和群落的叙述中不正确的是 a不同物种的种群密度往往差异很大 b出生率和死亡率是决定种群大小和种群密度的重要因素 C种群密度 Template




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tomski下列关于种群和群落的叙述中不正确的是 a不同物种的种群密度往往差异很大 b出生率和死亡率是决定种群大小和种群密度的重要因素 coloring