Microbiome+Microbes+Bacteria

http://arstechnica.com/science/2016/05/the-white-house-announces-121-million-microbiome-initiative/ The world is full of microbes. What is the function of microbes in larger living things and the environment in general? http://www.nytimes.com/2015/10/29/science/national-initiative-microbes-and-microbiomes.html http://arstechnica.com/science/2016/04/heres-your-chance-to-vote-what-do-you-want-to-know-about-your-microbiome/