Examlex
Preschool children group objects and form categories using the same criteria or distinguishing features as older children.
Neurons
Specialized cells in the nervous system that transmit information through electrical and chemical signals.
Myelin Sheath
A fatty covering that surrounds axons of some nerve cells, facilitating faster transmission of electrical impulses.
Myelin
A fatty substance that surrounds neurons' axons, helping to speed up the transmission of electrical signals in the nervous system.
Neurons
Electrically excitable cells in the nervous system that process and transmit information through electrical and chemical signals.
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