The Bystander Effect Refers to the Tendency for an Observer

question 64

Multiple Choice

The bystander effect refers to the tendency for an observer of an emergency to withhold aid if the

• A) emergency takes place in a large city.
• B) observer has just endured a frustrating experience.
• C) emergency is being observed by a number of other people.
• D) observer has been exposed to many similar emergencies in the past.

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Definitions:

Antigens

Substances often found on the surface of pathogens (like bacteria and viruses) that trigger an immune response when detected by the body.

Vaccination

The act of introducing a vaccine into the body to produce immunity to a specific disease.

Latent Infection

An infection that is present but does not exhibit symptoms until activated under certain conditions.

Cirrhosis

A late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions.