A Microbiologist Inoculates Staphylococcus Aureus into a Culture Medium

question 55

Multiple Choice

A microbiologist inoculates Staphylococcus aureus into a culture medium. Following incubation, both Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in this culture. What is the most likely explanation?

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

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Definitions:

Ideal Circumstances

Conditions that are considered perfect or most favorable for a particular situation or event.

Cognitive Development

The process through which a child's ability to think, understand, and learn evolves over time.

Internalized Mental Actions

involves the process where external activities are transformed into internal, cognitive operations, allowing for abstract thinking and problem solving.

Preoperational

A stage in Piaget's theory of cognitive development, typically from ages 2 to 7, characterized by symbolic thinking and a lack of logical operations.