MIcrobiomes contain two types of bacterial microbiota. 
- resident microbiota
- transient microbiota

Types of Microbiota in Microbiomes

The microbiota refers to the collection of microorganisms living in a specific environment. In the context of the human body, this refers to the totality of microbes (especially bacteria and other prokaryotes) inhabiting a particular region, such as the mouth, throat, gastrointestinal tract, eye, or vagina.

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University of Wisconsin - Madison

The microbiome refers to all microorganisms, prokaryotic and eukaryotic, that are living and adapted to a certain environment. It also includes the genetic material of these organisms. 

Microbiome

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

The human microbiome refers to the totality of microorganisms, particularly bacteria and other prokaryotes, that live on or within the human body. These microbes populate various anatomical sites—thriving in areas like the mouth, nasal cavity, throat, gastrointestinal tract, vagina, and skin—and their composition varies between individuals, differs across different body regions, and changes over time.

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