Microbiology has to do with things that are alive, but are too small to be seen with the naked eye.
Now you may be familiar with the term micro and things like microscope. It means things that are very very very small and can't be seen with the naked eye. Biology of course refers to anything that has life. So when you put micro and biology together you get things that are alive but are too small to be seen with the naked eye. Microbiology is becoming more and more important
