A Patient Says, "There Are So Many Kinds of Bacteria

question 18

Multiple Choice

A patient says, "There are so many kinds of bacteria. How does my body know which ones to kill and how to kill them?" What would be the nurse's most accurate response?

• A) "The alkaline environment in the stomach kills any bacteria you might swallow on food or in drinks."
• B) "Chemicals on the skin kill many of the bacteria from the environment."
• C) "Special white blood cells called toll cells help your body identify disease-causing bacteria."
• D) "Your mucous membranes help to filter out and kill bacteria."

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Definitions:

Independent Variables

Independent variables are the conditions or inputs that researchers manipulate or select in an experiment to determine their effect on dependent variables.

Observations

Individual instances of data collected through studies or experiments.

Degrees Of Freedom

The number of independent pieces of information used in the calculation of a statistic, often denoting the number of values that are free to vary.

Unit Change

A change in the independent variable by one unit and its effect on the dependent variable, often analyzed in regression models or experiments to understand causal relationships.