By Measuring the Star Formation Rate in Galaxies as a Function

question 20

Multiple Choice

By measuring the star formation rate in galaxies as a function of their redshift, we have learned that the average star formation rate in galaxies peaked approximately _________ years ago.

• A) 1 billion
• B) 3 billion
• C) 5 billion
• D) 7 billion
• E) 12 billion

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Definitions:

Guthrie

A psychologist recognized for positing that learning occurs through a pattern of stimulus and response actions, Guthrie emphasized the importance of the immediate physical context in learning.

Suppressed Behavior

Actions or reactions that are deliberately held back, restrained, or controlled.

Antagonistic

Refers to forces, muscles, or substances in opposition to each other, resulting in conflict or inhibition of action.