<http://schema.org/description>
"Protozoan, a one-celled organism. A protozoan is a eukaryote, an organism characterized by having its hereditary material enclosed in a nucleus bounded by a membrane."^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/life/cellular-microscopic/protozoan-info.htm>