Electrically charged particles of which two elements are crucial in the transmission of the nerve impulse?
a. iron and sodium
b. iron and potassium
c. sodium and nickel
d. sodium and potassium
ANSWER: d
Psychology
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What is the area of the brain that undergoes considerable development during the adolescent years?
a) Myelin bridges b) Cerebral cortex c) Corpus callosum d) Prefrontal cortex
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