Although not all microorganisms like it, many do and will grow. Use the information on this page when examining the petri plate display. Note the following characteristics. It is not important to identify the organisms on the plates. These plates illustrate the fact that microorganisms are everywhere and can grow under favorable conditions.
Fuzzy things are molds.
You will frequently see molds that are green, black, or white. Some molds are good, like the Penicillium mold that provides us with the antibiotic, penicillin. Some molds produce toxins that can make us very sick. Some molds make our food look, taste, or smell bad. Blobs that aren't fuzzy may be bacteria or yeasts.