Elliptical Galaxies Appear Red Because

question 6

Multiple Choice

Elliptical galaxies appear red because

• A) they are moving away from us.
• B) they contain mostly ionized hydrogen gas.
• C) they contain mostly old stars.
• D) they contain lots of dust.

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Definitions:

Antidepressant Drugs

Medications prescribed to alleviate symptoms of depression by adjusting the balance of neurotransmitters in the brain.

NSAIDS

Nonsteroidal anti-inflammatory drugs, a class of medications that reduce pain, decrease fever, and, in higher doses, lower inflammation.

Spinal Stimulation

A medical treatment that uses electrical impulses to relieve chronic pain by directly stimulating nerves in the spinal cord.

Transcutaneous Electrical Nerve Stimulation (TENS)

Treatment for pain involving electrical stimulation of neurons from the surface of the skin.