Which Technique Would Be Used to Estimate the Concentration of Naturally

question 25

Multiple Choice

Which technique would be used to estimate the concentration of naturally occurring Escherichia coli in a wastewater sample?

• A) agar dilution tube method
• B) laser tweezers method
• C) most probable number (MPN) method
• D) cell tagging using GFP method

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Definitions:

Natural Rate

The long-term rate of unemployment around which the unemployment rate fluctuates, or the rate of output expected when resources are fully employed.

Aggregate Demand

The complete demand for all categories of goods and services in an economy, evaluated at a given price level for a particular period.

Inflation

How fast the broad price levels for goods and services climb, undercutting the ability to buy.

Unemployment

The condition of someone being without a job despite actively looking for work, expressed as a percentage of the labor force.