1 “...The human microbiome, the collection of trillions of microbes living in and on the human body...”

2 “...The human microbiome, the collection of trillions of microbes living in and on the human body...”

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7 “...Built environments are the structures that humans create to shelter from the outdoors and provide...”

8 “...Built environments are the structures that humans create to shelter from the outdoors and provide...”

9 “... of the story of E. coli; its relationship to human health and the food we eat is much more complex. Not all E...”

10 “... of the story of E. coli; its relationship to human health and the food we eat is much more complex. Not all E...”

11 “...Microbes carry enormous genetic wealth and biological aptitude. Humans have already exploited...”

12 “...Microbes carry enormous genetic wealth and biological aptitude. Humans have already exploited...”

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15 “.... They are a scourge of humanity and are largely the result of fecal contamination of the environment. The sum...”

16 “.... They are a scourge of humanity and are largely the result of fecal contamination of the environment. The sum...”

17 “... humans, economically important animals, or crops. A number of eukaryotic microbes, including several...”

18 “... humans, economically important animals, or crops. A number of eukaryotic microbes, including several...”

19 “... for fighting off those that get inside us. The human immune system has been ridding our bodies of pathogens...”

20 “... for fighting off those that get inside us. The human immune system has been ridding our bodies of pathogens...”