Fig. 2
From: Microbiome definition re-visited: old concepts and new challenges
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40168-020-00875-0/MediaObjects/40168_2020_875_Fig2_HTML.png)
A schematic highlighting the composition of the term microbiome containing both the microbiota (community of microorganisms) and their “theatre of activity” (structural elements, metabolites/signal molecules, and the surrounding environmental conditions)