"WardsSci000725"

Students determine contamination levels of ground beef in different environments.

All microbial cultures undergo an extensive quality control program prior to releasing for sale, so they are guaranteed for purity as well as for species.

Found on dental plaque, implicated in cavities. No Lancefield group shown, gamma hemolysis. 

Colorless, most widely dispersed of the Serratia species. 

Use Sordaria fimicola to allow students to visualize the results of crossing over during cell division.

The presence of A. viscolactis in milk is a common cause for sliminess or "ropiness".

Produces orange pigments. 

Frequent human isolate. Causes gastroenteritis.

From sewage and human intestine. Causes dysentery. 

This organism is commonly isolated in soil and produces antibiotics such as bacitracin, subtilisin, and mycobacillin.