In Your Microbiology Lab, Your Class Is Identifying Bacteria

question 35

Multiple Choice

In your microbiology lab, your class is identifying bacteria.You are using dichotomous keys to aid in the identification process using the data from a variety of biochemical tests.What problems do you foresee in this procedure?

• A)Dichotomous keys are not valid for identification.
• B)If you misread a biochemical test or write down the wrong result, the key will likely take you to an alternative organism that is not your unknown bacterium.
• C)Dichotomous keys are too sophisticated to read properly, so you are worried that there will be a large degree of error in your identification.
• D)The dichotomous key does not contain information on your bacterium.

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Definitions:

Average Variable Cost

The total variable costs (costs that change with production levels) divided by the quantity of output produced.

Output

The total amount of goods or services produced by a firm, industry, or economy in a given period, often used as an indicator of productivity and economic health.

Variable Cost

Costs that change in proportion to the level of output or activity in a company’s production or operations.

Average Variable Cost

The total variable cost per unit of output, which varies with the level of production.