The R-COOH. Unbranched hydrocarbon chain with carboxyl at one end.
AN EPIDEMIC is a disease that affects a large number of people within a community, population, or region. A PANDEMIC is an epidemic that's spread over multiple countries or continents. ENDEMIC is something that belongs to a particular people or country.
C. Motility --> Listeria is motile (tumbles over each other in microscope), whereas Corynebact. is non-motile
**Both: Gram (+) rods, catalase (+)
Other tests: Nitrate reduction and sugar fermentation
Answer:
Sunlight, humidity, soil type, temperature