Yersinia Pestis

question 46

Multiple Choice

Yersinia pestis

• A)was virulent in the Middle Ages but is no longer virulent.
• B)has humans as an endemic reservoir.
• C)does not respond to antimicrobic drugs.
• D)is usually transmitted by a flea vector.
• E)All of the choices are correct.

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Definitions:

Economic Profits

A rephrased definition of economic profit, emphasizing the gains a firm makes in excess of its total operational costs, including opportunity costs.

Monopoly

A market structure characterized by a single seller or producer supplying a unique product or service, with significant barriers to entry for potential competitors.

Price Effect

The impact on the market or consumers' purchasing behavior due to a change in the price of a good or service.

Megawatts

A unit of power equal to one million watts, often used to quantify the output of large power plants or the electricity consumption of large entities.