Spiral Arms Are

question 87

Multiple Choice

Spiral arms are

• A) solid features.
• B) clumps of gas and dust that travel together.
• C) tracks that stars follow to leave the galaxy.
• D) density fluctuations in a galaxy's disk.
• E) bipolar outflows from the galactic nucleus.

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Definitions:

Amygdala

A region in the brain involved in processing emotions, particularly fear and aggression, and forming emotional memories.

Medulla

A section of the brainstem responsible for regulating vital body functions, such as breathing and heart rate.

Congenitally Blind

Refers to individuals who are blind from birth due to genetic or developmental factors.

Facial Expressions

Elements of human nonverbal communication that involve movements or positions of the face to convey emotional states or reactions.