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Which statement best describes the construction of western railroads?
Serotonin
A neurotransmitter that plays a key role in mood regulation, digestion, sleep, and other bodily functions.
Emotional Arousal
The state of being emotionally stimulated or excited, which can impact cognitive processes and physical responses.
Fight or Flee
A physiological response to perceived harmful events, attacks, or threats to survival, also known as the fight-or-flight response.
Physiological Basis
The underlying physical and biological mechanisms that enable bodily functions and behaviors.
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