下列关于种群特征的叙述中不正确的是a.种群的性别比例在一定程度上影响种群的出生率b.种群密度预示着种群数量的未来变化趋势c.出生率和死亡率是 Template




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tomski下列关于种群特征的叙述中不正确的是a.种群的性别比例在一定程度上影响种群的出生率b.种群密度预示着种群数量的未来变化趋势c.出生率和死亡率是 coloring