Where do the trillions of microorganisms that form the human microbiome primarily reside?

Answer

On our skin and within our digestive tracts, especially the large intestine

The text specifies that these microorganisms reside primarily on the skin and within the digestive tracts, with the large intestine being a major site.

Where do the trillions of microorganisms that form the human microbiome primarily reside?
healthGutorganismbacteriamicrobiome