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Which of the following is NOT true about comets and asteroids?
Sympathetic Nervous System
A part of the autonomic nervous system that prepares the body for action by increasing heart rate, blood pressure, and energy production.
Opiatelike Neurotransmitters
Substances in the brain that act on the same receptors as opiates, playing key roles in pain relief and pleasure.
Endorphins
Neurochemicals produced in the brain that act as natural painkillers and also boost feelings of pleasure or well-being.
ACh Agonists
Substances that mimic or enhance the action of acetylcholine, a neurotransmitter involved in muscle activation and several brain functions.
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