Which of the Following Accurately Characterizes Emission Lines from Active

question 35

Multiple Choice

Which of the following accurately characterizes emission lines from active galactic nuclei?

• A) Active galaxies always have strong emission lines.
• B) Some active galaxies have strong emission lines, but others have no emission lines.
• C) Active galaxies never have strong emission lines.
• D) Emission lines cannot be observed from active galaxies because of their extreme luminosities.

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Brain

The organ located in the head of vertebrates that coordinates the body's actions and reactions by transmitting signals to and from different parts of the body.

Primate Order

A category in the classification of mammals that includes humans, apes, monkeys, and their close relatives, characterized by advanced brain development, opposable thumbs, and typically binocular vision.

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