Microbiology is the study of microbes (organisms too small to be seen by the naked eye) and the way they interact with humans, animals, plants, and the environment. Microbiology is not a single subject, and it has applications in different fields. In general, microbiologists study microscopic organisms, which are organisms too small to see with the naked eye. There are many types of microscopic organisms so microbiologists tend to specialize in one certain field within microbiology creating many types of microbiologists. Microbiologists study these microorganisms learning about their ecology, their survival, how they affect us, and how we can utilize them.