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Which of the following is not necessarily a characteristic of perfect competition?
Synthetic Stimulant
A man-made substance designed to increase alertness, attention, and energy, often used as drugs.
Mild Hallucinogen
A substance that induces subtle alterations in perception, mood, and thought, without causing intense hallucinations or loss of reality.
Dopamine
A neurotransmitter in the brain that plays key roles in regulating mood, motivation, pleasure, and motor control.
Serotonin
A neurotransmitter in the brain associated with mood regulation, digestion, sleep, memory, and other bodily functions.
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