An unfortunate, unimmunized, patient steps on a rusty nail. The untreated infection progresses to the point where the patient is suffering from severe rigid paralysis. The causative agent is probably:

Clostridium perfringens can be identified with which of the following characteristics? 1. Lecithinase positive 2. Lactose negative 3. Stormy fermentation in litmus milk 4. Reverse CAMP positive

Which of the following organisms is considered lipophilic; requires olive oil overlay to grow in culture?

Which of the following organisms is germ tube positive?

In humans, the MOST common method of entry of Mycobacterium tuberculosis is:

Which of the following characteristics are consistent with Ureaplasma urealyticum? 1) colonies resembling “raspberries” on A7 media 2) colonies resembling “fried eggs” on A7 media 3) implicated in urinary tract infection 4) implicated in premature labor/ spontaneous abortion

A Mycobacterium spp. that produces a yellow-orange pigment regardless of whether it is grown in the dark belongs to which Runyon class?

Explain the difference between continental glaciers and alpine glaciers. 

Contour lines are measured from 

___________ – when the glacial trough or U-shaped valley fills in with melted snow or glacial water.