A Starburst Galaxy Appears to Be a Galaxy in Which

question 104

Multiple Choice

A starburst galaxy appears to be a galaxy in which

• A) a collision with another galaxy has produced a burst of star formation.
• B) most of the energy from the galaxy is being produced by supernovae.
• C) a central, supermassive black hole is throwing jets of gas and stars out of the nucleus into intergalactic space.
• D) essentially all the star formation took place in a single, billion-year-long burst early in the life of the galaxy.

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Definitions:

Stimulus Experience

The process of perceiving and responding to events or changes in the environment as stimuli.

Observational Learning

A learning process where individuals acquire new behaviors, skills, or attitudes by watching and imitating others.

Operant Conditioning

A learning process in which the consequences of an action affect the likelihood of the action being performed again, involving reinforcement and punishment.

Classical Conditioning

A teaching method in which a response originally triggered by a second stimulus is ultimately triggered by the first stimulus after the two stimuli have been repeatedly associated.