What is a microognism?

Answer 1

an organism that is too small to be seen by the naked eye, first observed by Anton van leeuwenhoek in 1675. examples are bacteria, fungi, archaea, and protist; viruses and prions are microscopic but not generally considered microorganisms because they are thought of as non living found from http://www.Biology-online.org/dictionary/Microorganism

Answer 2

A microorganism is a tiny living organism that can only be seen with a microscope. They include bacteria, viruses, fungi, and protists. Many microorganisms are beneficial, such as those involved in food production and decomposition, but some can also cause disease.