What Is the Galaxy Content of Rich, Irregular Clusters of Galaxies

question 98

Multiple Choice

What is the galaxy content of rich, irregular clusters of galaxies such as the Hercules cluster?

• A) about the same number of spirals as ellipticals
• B) entirely spirals
• C) more than one-half spirals, less than one-quarter ellipticals
• D) more than one-half ellipticals, less than one-quarter spirals

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Definitions:

Ingroup Bias

The tendency to favor one's own group, including its members or interests, over those of outsiders or competing groups.

Social Loafing

The phenomenon where individuals exert less effort when working collectively in a group than when working individually.

Social Facilitation

The phenomenon where an individual's performance is enhanced when they are in the presence of others.

Performing With Others

The act of engaging in tasks or activities in the presence of, or in collaboration with, other people.