According to the data of RAPD and ISSR molecular markers of the leaf samples, UPGMA cluster was made at population level and individual level.

分别依据古银杏叶片样品的RAPD和ISSR标记数据，进行了群体和单株聚类分析。

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"In the general population today, at this genetic, environmental level, we've pretty much gone as far as we can go," says anthropologist William Cameron Chumlea of Wright State University.

莱特州立大学的人类学家威廉·卡梅伦·楚姆利说：“在今天的一般人群中，在这种遗传和环境水平下，我们已经走到了我们力所能及的程度。”

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The Strategy calls upon all stakeholders to take action at global, regional and local levels to improve diets and physical activity patterns at the population level.

战略还要求全体相关利益者在全球、区域和地方水平上采取行动以改善人口饮食和身体活动模式。

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"When you can't say for sure whether all the women in the advance provision group actually used the medication, then you're kind of looking at population level effect of a strategy, not the individual effect of a medication."

VOA: standard.2010.03.22

The market needs to be directly harnessed towards the goal of stabilising population growth at a sustainable level.

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Washington's population is at its highest level in nearly 20 years, and at current rates the city will record in 2010 its lowest number of homicides in almost 50 years.

ECONOMIST: Unemployment costs the mayor his job

Global population will level off at between eight and ten billion.

ECONOMIST: Intelligent communication