species of microorganisms specific to the biotope that form the base of the microbiocenosis 

microorganisms that have entered the biotope from other biotopes of the host or from the environment 

collective genes of the microbiota 

specific species of microorganisms for the biotope 

collection of a human's own genes and microbiome 

stable community of microorganisms in a specific habitat 

habitat of populations characterized by relatively constant conditions