Microbes differ in their size and cellular machinery.
Microbes are microorganisms that can only be visible with the help of a microscope. These are living creatures that have numerous effects on our living system.
However, while defining the microbe, scientists got confused and find contradictions such as:
Conversely, there are some complex multicellular organisms such as mites which require a microscope to get visible. Although they are not considered microbes.
Challenges lie in defining because: