Which of the following is a Gram-negative bacterium that acts as a predator on other Gram-negative bacteria, and might be used to control populations of Gram-negative human pathogens in locations such as poultry farms?

A. Salmonella enteritidis
B. E. coli
C. Vibrio choerae
D. Bdellovibrio


Answer: D

Biology & Microbiology

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