Natural Selection Has Fueled the Rise in MRSA (Methicillin-Resistant Staphylococcus

question 27

Multiple Choice

Natural selection has fueled the rise in MRSA (methicillin-resistant Staphylococcus aureus) infection by

• A) enabling people to use a greater variety of antibiotic drugs to fight the infection.
• B) inactivating a greater variety of antibiotic drugs.
• C) enabling certain bacterial variants to survive in the presence of many antibiotic drugs.
• D) killing all bacteria exposed to antibiotics, including helpful ones.
• E) creating bacterial strains that can resist multiple antibiotic drugs.

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Definitions:

Beta

A measure of a stock's volatility in relation to the overall market; a beta greater than 1 indicates higher risk and potential return, while a beta less than 1 implies less risk and return.

Cost of Debt

The effective rate that a company pays on its current debt, including loans, bonds, and any other form of debt.

Cost of Equity

The theoretical earnings paid by a business to its equity holders as compensation for the risk they take by investing.

Preferred Stock

A class of ownership in a corporation that has a higher claim on its assets and earnings than common stock, often paying fixed dividends.