Observations of Galaxies and Clusters of Galaxies Indicate That About

question 59

Multiple Choice

Observations of galaxies and clusters of galaxies indicate that about ___________ percent of the matter in the universe is dark matter.

• A)5
• B)25
• C)35
• D)45
• E)90

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Definitions:

Behavioral

Pertaining to actions or reactions of persons or organisms in response to external or internal stimuli.

Physiological

Related to the functions and processes of living organisms and their parts.

Sensitivity

The ability of a measure to detect differences between groups.

Functional MRI

A neuroimaging procedure that measures and maps the brain's activity by detecting changes associated with blood flow, used particularly in studying brain functions.