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Why did the slave trade come to rely on the peoples of West Africa, and what were the consequences for all parties involved?
Neurotransmitters
Chemicals that carry signals over the gap between synapses in the brain.
Synapses
The junctions at which neurons communicate with each other through neurotransmitters.
Hormones
Chemical messengers produced by the endocrine glands that regulate various bodily functions and processes.
Circadian Rhythm
The natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.
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