Trillions of bacteria occupy human bodies, from head to toe, inside and out, forming a microbiome that is as personal as a ...

This article explores how nitrogen becomes available to organisms and what changes in nitrogen levels as a result of human activity means to local and global ecosystems. Nitrogen is one of the ...

2010). In other cases, species with large structures become habitat for smaller organisms. For example, the human digestive tract harbors so many bacteria that they outnumber the cells in the ...

Culturally, the yeast-like organisms isolated were Monilia ... indicated a marked difference between the commercial yeast and the Monilia isolated from human sources. One strain was more closely ...