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?

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Bdellovibrio is a Gram-negative bacterium that preys on other Gram-negative bacteria, including human pathogens such as E. coli and Salmonella. Its predatory behavior makes it a potential tool for controlling the population of Gram-negative pathogens in locations such as poultry farms.

Which of the Following Is a Gram-Negative Bacterium That Acts