Mold is a type of fungus. A fungus is a microorganism such as yeasts and, of course molds or macrorganisms such as mushrooms. Just like any other type of organism, they contain a cell wall along with DNA in their nuclei. So in simple terms, a fungus is an organism in its own class as compared to bacteria and other plants and animals. They have specific characteristics, one of which is they produce by means of forming spores, which are usually carried by the wind. Spores are microscopic entities formed by fungi and some other organisms, which contain all of the genetic information needed to form a new organism. In short, they are little protected packets with reproductive capabilities. Call www.moldtestchicago.com for all your mold testing needs.