"Micro" means small, in terms of size or scale.

"Biology" simply means living things.

Therefore, study of microbiology would indicate studying small living things.

Usually, uni cell membrane is one example.

Just thing that study of microbiology studies living things that can only be observed by microscope.

A department about microbiology

Robert W. Bauman has written:

'Microbiology' -- subject(s): Microbiological Phenomena, Microbiology, Medical microbiology, Microbiological Techniques

'Microbiology'

'Microbiology' -- subject(s): Microbiology, Bacterial Infections, Microbiological Techniques, Microbiological Phenomena, Medical microbiology

it takes time to understand microbiology and it is somewhat hard. So DON'T TAKE MICROBIOLOGY!

Robert M. Sterritt has written:

'Microbiology for environmental and public health engineers' -- subject(s): Environmental Microbiology, Industrial microbiology, Microbiology, Sanitary engineering, Sanitary microbiology