Which Statement Is True About Normal Function of the Gastrointestinal

question 7

Multiple Choice

Which statement is true about normal function of the gastrointestinal (GI) tract?

• A) Failure of the tight junctions allows bacteria to invade the GI tract.
• B) The gut lacks protective mechanisms; thus, infection is always a concern.
• C) Water is reabsorbed at the beginning of the colon.
• D) Without nutritional stimulation, mucosal villi atrophy.

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Definitions:

Hypothesis Testing

A method in statistics to decide whether to accept or reject a hypothesis based on sample data, to determine the likelihood that a parameter related to the population is true.

Research Hypothesis

A specific, testable prediction about the expected outcome of a study.

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Samples

Subsets of a population selected for measurement, observation, or questioning to make statistical inferences about the whole population.