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Which statement is correct concerning how much sleep people need?
Dendrites
Branch-like extensions of neurons that receive signals from other nerve cells and are integral for brain communication.
Neurotransmitters
Chemical substances in the nervous system that transmit signals across a synapse from one neuron to another, influencing mental states and behavior.
Alleles
Variants of a gene that occur at the same place on a chromosome, contributing to the diversity of traits in a population.
Dominant
Pertaining to a trait, allele, or characteristic that overrides or masks another in genetic expression.
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