The Unified Model Describes Active Galactic Nuclei Using

question 139

Multiple Choice

The unified model describes active galactic nuclei using

• A)a supermassive black hole at the center of a normal spiral galaxy.
• B)a supermassive black hole surrounded by an accretion disk and dense disk of gas.
• C)an accretion disk around a neutron star.
• D)gravitational lenses to intensify the radiation coming from them.
• E)different lines of sight toward and dwarf irregular galaxy.

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Definitions:

Observational Learning

A learning process through watching the behaviors of others and the outcomes of those behaviors.

Modeling

A method used in psychology to learn by observing and imitating others' behaviors, attitudes, or emotional expressions.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired together; an unconditioned stimulus and a conditioned stimulus.

Fear Response

The physiological and psychological reaction to perceived threats, activating the body's fight or flight response.