______________________ Are Hardy and Survive Freezing and Relatively High Temperatures

question 45

Multiple Choice

______________________ are hardy and survive freezing and relatively high temperatures and chlorination up to 10 ppm.

• A) Noroviruses
• B) Salmonella bacteria
• C)E.coli bacteria
• D) Listeria bacteria

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Definitions:

Science Goal

The objective or aim of a scientific endeavor, intended to advance knowledge or solve a specific problem.

Extraneous Variable

Denotes any variable other than the independent variable that might cause unwanted changes in the outcome of an experiment.

Independent Variable

The variable that is manipulated or changed in an experiment to test its effects on the dependent variable.

Dependent Variable

In an experiment, the variable that is measured or tested and is expected to change as a result of manipulations to the independent variable.