Skin and Mucous Membranes

question 17

Multiple Choice

Skin and mucous membranes

• A)are the first line of innate immunity.
• B)are the first line of adaptive immunity.
• C)act as physical barriers to infection.
• D)contain antimicrobial secretions.
• E)are the first line of innate immunity,act as physical barriers to infection,AND contain antimicrobial secretions.

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Definitions:

Fake Treatments

Interventions or procedures that are designed to mimic real treatments but do not contain any active ingredients or therapeutic value, often used in the context of clinical trials as placebos.

Experiment

A controlled test of a hypothesis in which the researcher manipulates one variable to discover its effect on another.

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Manipulated

Altered, controlled, or handled skillfully, often with the implication of unfairness or deceit.