A Microbiologist Inoculates Staphylococcus Epidermidis and Escherichia Coli into a Culture

question 74

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

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Definitions:

Complex Economy

An economic system featuring a wide variety of industries, products, and services, often with a high degree of interdependence among them.

Efficiency Wages

A theory that suggests firms pay their employees higher wages than the market equilibrium to increase productivity and efficiency.

Pool of Applicants

The group of candidates from which job positions can be filled.

Labor Force Participation

The percentage of the working-age population that is either employed or actively seeking employment.