The Normal Human Microbiota Is Considered Part of the fiRst

question 68

Multiple Choice

The normal human microbiota is considered part of the first line of defense because ______.

• A) resident bacterial cells stimulate phagocytosis of pathogens
• B) microbiota cause an inflammatory response, eliminating pathogens
• C) pathogens and normal biota cannot exist in the same location
• D) microbial antagonism keeps potential pathogens in check

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Definitions:

Scientific Process

A methodical approach to inquiry that involves observing phenomena, formulating hypotheses, conducting experiments, and drawing conclusions based on evidence.

Observation

A method of data collection involving closely monitoring and recording behaviors, actions, or events as they occur naturally, without interference.

Theory Development

The process of constructing a coherent set of propositions or hypotheses to explain phenomena, often tested through scientific research.

Hypothesis Testing

A statistical method that is used in making statistical decisions using experimental data.