The Relationship Between a Galaxy and the Galaxy Cluster of Which

question 190

Multiple Choice

The relationship between a galaxy and the galaxy cluster of which it is a part is similar to the relationship between a galaxy cluster and the supercluster of which it is a part, with one important difference. What is that difference?

• A) Clusters contain only like galaxies (spirals, etc.); superclusters combine clusters of various types.
• B) Superclusters rely on copious amounts of dark matter to bind them together; clusters do not.
• C) A cluster is a gravitationally bound system; a supercluster is not.
• D) The galaxy clusters in a supercluster orbit an enormous black hole; this is not the case with the galaxies in a cluster.

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Definitions:

Achievement Motivation

The drive or urge to attain a goal or a standard of excellence, often related to the persistence and effort people put into tasks to meet personal and societal criteria of success.

David McClelland

is known for his work on achievement motivation, including the theory that people are motivated by the need for achievement, power, and affiliation.

Need Achievement Theory

A psychological theory that explores motivation and focuses on how an individual's need for achievement influences their behavior and performance.

TAT

Thematic Apperception Test, a projective psychological test that involves creating stories about ambiguous scenes and images, used to uncover a person's underlying thoughts, motives, and feelings.