Body: Scholars who research "Microbiology" look at unicellular, multicellular, and acellular microorganisms.
Some subfields in "Microbiology" include virology, parasitology, mycology, bacteriology.
Whilliam B Whitman, M. Madigan, J. Martinko are a few specialists of "Microbiology".
Why study "Microbiology"? understand pathogens; understand the complex relationships between lifeforms on a microscopic level.