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Hektoen Enteric agar serves which purpose when used in the bacterial fecal culture?

The following image was taken from a gram stain of a sinus drainage. What is the most probable identification of this organism?

A microbiologist is reading an anaerobic plate from an intestinal abscess. There is growth on the BBE plate: gray colonies with a brown color in the area around the colonies. There is also a dark precipitate in the medium in the areas of heavy growth. He gram stains the colonies and observes gram-negative coccobacilli. What is the presumptive identification of this organism?

The following results were obtained when an ampicillin microdilution test was performed: TEST WELL RESULT Sterility Turbid Growth Turbid 1 µg/mL Turbid 2 µg/mL Turbid 4 µg/mL Turbid 8 µg/mL Turbid 16 µg/mL Turbid 32 µg/mL Turbid An evaluation of these results indicates that the:

Which category of media can be described as containing some factor (or factors) that allows colonies of one bacterial species or type to exhibit certain metabolic or culture characteristics that can be used to distinguish them from other bacteria growing on the same agar plate?

After blood is drawn for culture:

Borrelia hermsiiinfection is characterized by:

Resistance to ______ is a major concern for the treatment of B. fragilis.

An organism from a sputum culture grows as a pure colony on SBA, CHOC, and MAC – but does NOT grow on CNA. What can be assumed?

An organism from a sputum culture grows as a pure colony on SBA, CHOC, and MAC – but does NOT grow on CNA. What can be assumed?