"The Mystery of Lyle and Louise"

Daphnia are a widely studied small crustacean used for a number of physiology studies including the effects of drugs on heartbeat and temperature on metabolism.

This organism is easily recognized by its trumpet-shape, and can commonly be found in freshwater ponds and streams. It reproduces by budding.

Study the Rotifera under your microscope to discover the variety of structures among them. Subculture them in Alfalfa or Hay medium to increase your supply. Species may vary based on availability.

This organism is often times isolated from food; in large amounts it can cause food poisoning

This organism is a common environmental isolate, and can be found in soil as well as in industrial settings.

Oscillatoria is a genus of filamentous green algae that moves by sliding filaments back and forth against each other.

Paramecium bursaria is a ciliate that contains mutualistic algae called Zoochlorella. The algae lives in the cytoplasma of the Paramecium and provides it with food. Paramecium bursaria grows in Dilute Alfalfa Medium (Hay Medium) or Soil Water Medium. Requires light for growth.

Paramecium multimicronucleatumis one of the largest species of Paramecium. This ciliate contains a single macronucleus and four or more micronuclei. Grows in Dilute Alfalfa medium (Hay Medium).

Commonly known as the Vinegar Eel, these free-living nematodes require very little care, feeding in vinegar and feeding on fungi contained in it.

Planaria are a flatworm commonly used in science fair projects. They do not bite and move very slowly, making them easy for young students to observe.

Isolated from soil. Forms red pigment (best on high carbohydrate medium) and has oval eccentric spores. 

Colorless, most widely dispersed of the Serratia species. 

This spore-forming, thermophilic organism is commonly used for germicidal and sporicidal testing due to its ability to withstand higher-than-normal temperatures.

Noted for capsular swelling. Causes pneumonia and urinary tract infections.

Isolated from human intestine, this organism is known for its distinctive putrefactive odor.

Isolated from human nasopharynx. Presumably not related to N. sicca; some relation to N. gonorrhoeae. Often agglutinates in saline.