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Why Are Igneous Rocks That Consist of Very Small Crystals

question 84

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Why are igneous rocks that consist of very small crystals called aphanitic?


Definitions:

Cannon-Bard Theory

A theory of emotion that proposes emotions and bodily reactions occur simultaneously in response to stimuli, contrary to earlier theories that suggest a sequential process.

Two-factor Theory

A theory suggesting emotion is based on physiological arousal and cognitive labeling of that arousal.

Schachter-Singer Theory

A theory of emotion that states emotions are determined by physiological arousal and the cognitive interpretation of that arousal.

Spinal Cord

A major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain.

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