A Microbiologist Inoculates Staphylococcus Epidermidis and Escherichia Coli into a Culture

question 70

Multiple Choice

A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium.Following incubation, only the E.coli grows in the culture.What is the most likely explanation?

• A)The microbiologist used too much inoculum.
• B)The culture is contaminated.
• C)The incubation temperature was incorrect.
• D)The culture medium must be selective.
• E)The culture medium must be differential

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Definitions:

Quantity of Output

Refers to the total amount of goods or services produced by a company over a specific period.

Costs

The total expenses incurred by a business in producing goods or providing services.

Variable Cost

relates to expenses that vary directly with the level of production or business activity, such as raw materials and labor costs.

Contribution Margin

The selling price per unit minus the variable cost per unit, used to cover fixed costs and to generate profit.