Columbia subject headings:
Adaptation (Physiology)
Microbial ecology.
Microorganisms--Physiology.
Harvard subject headings:
Adaptation (Physiology)
Extreme environments--Microbiology
Extreme environments.
Microbial ecology.
Microorganisms--Physiology
Princeton subject headings:
Adaptation (Physiology)
Extreme environments--Microbiology.
Microbial ecology.
Microorganisms--Physiology.