Examlex
Which of the following has the smallest mass?
Reuptake Process
A mechanism in the nervous system where neurotransmitters are taken back into the neuron that released them, effectively ending the signal between neurons.
Cocaine
A powerful stimulant drug derived from the leaves of the coca plant, which can cause short-term euphoria, energy, and talkativeness.
Heroin
An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, highly addictive and illegal.
Amphetamines
A class of stimulant drugs that increase alertness, attention, and energy, often used medically and recreationally.
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