MacConkey Agar Is Selective in That It Inhibits Gram-Positive Bacterial

question 22

Multiple Choice

MacConkey agar is selective in that it inhibits Gram-positive bacterial growth and differential in that it distinguishes ________ from other coliforms that are unable to ferment lactose.

• A) Staphylococcus aureus
• B) Salmonella
• C) Shigella dystenteriae
• D) Escherichia coli

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Definitions:

Variable Costs Per Unit

Costs that vary directly with the level of production or volume of goods produced, altering according to the amount produced.

Production Increases

Refers to a rise in the quantity of goods and services produced by a company or economy over a certain period.

Break-even Point

The level of production or sales at which total revenues equal total costs, resulting in no net loss or gain.

Fixed Costs

Fixed expenses that are unaffected by production or sales volumes, encompassing costs like rent, employee salaries, and insurance fees.