An Astronomer Studying a Distant Cluster of Galaxies Finds That

question 35

Multiple Choice

An astronomer studying a distant cluster of galaxies finds that several of the galaxies are spiral-shaped, with a large nuclear region and tightly wound arms. How should the astronomer classify these galaxies?

• A) Sb
• B) SBb
• C) Sa
• D) Sc

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Definitions:

History of Angina

A medical background indicating episodes of chest pain or discomfort due to insufficient blood flow to the heart muscle, typically resulting from coronary artery disease.

Helping Relationship

A relationship characterized by an imbalance of assistance, where one party provides support or aid to another.

Preinteraction

The phase before direct interaction begins, often used in contexts like therapy, counseling, or professional meetings to describe preliminary stages.

Orientation

The ability of an individual to recognize one's self in relation to time, place, and identity, often assessed in mental health evaluations.