Which of the Following Statements Correctly Describes Vaccines and How

question 11

Multiple Choice

Which of the following statements correctly describes vaccines and how they help prevent viral infection?

• A) Vaccines are active versions of a virus that stimulate an immune reaction in a person.
• B) Vaccines are inactive versions of a virus that stimulate an immune reaction in a person.
• C) Vaccines are infectious proteins that stimulate an immune reaction in a person.
• D) Vaccines are functional pathogens that stimulate an immune reaction in a person.

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Definitions:

Digestive

Pertains to the biological system in organisms responsible for breaking down food into nutrients and waste.

Esophagus

The muscular tube that moves food from the throat to the stomach.

Sphincter

A ring-like muscle that controls the passage of substances through an opening in the body, such as the anus or esophagus.

Peristalsis

The series of wave-like muscle contractions that moves food through the digestive tract.