下列有关种群特征的叙述错误的是 A.豌豆种群没有性别比例这一特征b.出生率和死亡率是指种群在单位时间内新产生和死亡的个体数目c.两个均处于 Template




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tomski下列有关种群特征的叙述错误的是 a.豌豆种群没有性别比例这一特征b.出生率和死亡率是指种群在单位时间内新产生和死亡的个体数目c.两个均处于 coloring