All of the Following Are True Statements About the Development

question 3

Multiple Choice

All of the following are true statements about the development of antibiotics,except:

• A)most bacteria that stopped the growth of other bacteria by producing antibiotics were soil bacteria
• B)Fleming noticed that a contaminant mold (Penicillium)prevented the growth of bacteria adjacent to itself
• C)an antibiotic was discovered in the sea after a scientist noted the absence of disease causing organisms in the seawater where the sewage entered
• D)sulfa drugs did not prove to be useful as the body converted them into inactive molecules

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Definitions:

Break-even Quantity

The number of units that need to be sold for a business to cover its production costs, resulting in zero profit or loss.

Fixed Costs

Costs that do not change with the level of output or sales, such as rent or salaries, remaining constant regardless of business activity.

Marginal Costs

The cost added by producing one additional unit of a product or service.

Net Present Value

A calculation used to assess the value of future cash flows in today's dollars, considering the time value of money.