Stellar Winds and _____ Will Eventually Blow Away the Protostellar

question 18

Multiple Choice

Stellar winds and _____ will eventually blow away the protostellar disk and remnant cocoons of a protostar apart.

• A) gas jets
• B) magnetic fields
• C) shock waves
• D) radiation pressure
• E) gravity waves

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Definitions:

PNS

The Peripheral Nervous System, which includes all the nerves that lie outside the brain and spinal cord.

Reticular Formation

Midbrain area in which nuclei and fiber pathways are mixed, producing a netlike appearance; associated with sleep–wake behavior and behavioral arousal; also called the reticular activating system (RAS).

Sleep

A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, and inhibition of nearly all voluntary muscles.

Orienting Responses

The instinctive redirection of attention toward a new or important stimulus, often involving physical positioning toward the stimulus.