Microbial diversity encompasses the variety of microorganisms, including bacteria, archaea, fungi, protists, and viruses, found in a particular environment.

Protista is a kingdom within the domain Eukarya, not a separate domain of life.

Archaea are extremophiles, meaning they can thrive in extreme conditions that would be lethal to most other organisms.

Conjugation, transformation, and transduction are all mechanisms by which bacteria can exchange genetic material.

Amensalism is not a type of microbial symbiosis, as it describes a relationship where one organism is harmed while the other is unaffected.

Decomposition is the process by which microorganisms break down organic matter into simpler compounds, releasing nutrients back into the environment.

Methane fermentation is not a type of microbial fermentation, but rather a process carried out by methanogens, a group of archaea.

Virology is the study of viruses, including their structure, function, evolution, and interactions with host organisms.

Archaea are not known to be microbial pathogens, although some species can be opportunistic pathogens in certain circumstances.

Nitrogen fixation is the process by which microorganisms convert atmospheric nitrogen into a form that can be used by plants, such as ammonia or nitrate.

Biofilm on plant roots is not a type of microbial biofilm, but rather a beneficial association between plants and microorganisms known as the rhizosphere.

Bioremediation, phytoremediation, and mycoremediation are all processes by which microorganisms remove pollutants from the environment.

Contact-dependent quorum sensing is not a type of microbial quorum sensing, but rather a mechanism by which bacteria communicate through direct cell-to-cell contact.

Microbial ecology, environmental microbiology, and geomicrobiology are all fields of study that focus on the interactions between microorganisms and their environment.