"Microbiology"

Observe a relationship between two organisms that together produce an effect they could not achieve individually.

Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive). 

All-purpose medium that supports the growth of a variety of microorganisms.

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

Beta hemolysis on blood. Causes wound infections and septicemia. 

Isolated from milk and udders of cows. Lancefield group B, beta hemolysis. Causes infection of the female genital tract, maternal septicemia, neonatal infections. Camp test positive; resistant to bacitracin.

Penicillium notatum is a deuteromycete that produces penicillin. It is available in normal and high-yield strains.

Lancefield group A, beta hemolysis. Sensitive to bacitracin. Causes strep throat, rheumatic fever, and scarlet fever.

Isolated from sewage, human intestines, and urinary tract infections. Spreading colonies are seen on agar growth medium. 

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

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

A Common Intestinal Flora Isolate, Demonstrates Alpha Hemolysis on Blood Agar Growth Medium

Isolated from human saliva, sputum, and intestine. No Lancefield group shown, alpha hemolysis.

No Lancefield group shown, alpha hemolysis. Bile solubility test positive, optochin sensitive. Causes pneumonia. 

Both of these strains of Serratia marcescens are colorless mutants when plated alone, but when grown together, they produce a red pigment.

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