Which Statement About the Immune System Is Correct

question 72

Multiple Choice

Which statement about the immune system is correct?

• A) Memory cells are involved in a primary immune response.
• B) Dendritic cells were first identified in the nervous system.
• C) Interferons are specific proteins that block cell replication at the level of mitosis.
• D) Natural killer cells are involved in both specific and nonspecific immune responses.
• E) Defensins are one type of protective protein synthesized by T helper cells.

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Definitions:

Vaccine Effectiveness

A measure of the ability of a vaccine to prevent a specific disease or its consequences under real-world conditions.

P-value

A statistical measure that helps determine the significance of results in hypothesis testing, indicating the probability of observing test results as extreme as the ones obtained if the null hypothesis were true.

Significance Level

The threshold of probability at which the results of a statistical test are considered significant, often denoted by alpha.

Product Recognition

The ability of consumers to identify a product or brand by its attributes, logo, packaging, or advertising.