As soon as an action potential at one point along the axon occurs, there is
a brief reversal of the membrane's electrical charge. Now the inside of the
axon is positive relative to the outside of the axon.
This reversal of
charges is due to the flow of __________ ions into the axon.
a. positively charged potassium
b. negatively charged potassium
c. positively charged sodium
d. negatively charged sodium
e. both negatively and positively charged sodium
c. positively charged sodium
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Compared with other cultures, North American families of preschool children
blame themselves for a child's misbehavior. use reasoning and disappointment to punish a child's misbehavior. use the discipline technique of time-out most often to deal with a child's misbehavior. remove children's playthings to punish a child's misbehavior.
Which of the following is NOT true about the WIC (Nutrition for Women, Infants, and Children) program?
a. Children who benefit from WIC programs show higher scores in IQ and school performance. b. It is associated with higher levels of breast-feeding among women. c. It only provides supplements to women who are breast feeding their infants because studies show it is the most healthy way to feed infants. d. It offers women vouchers for foods such as milk, cereal, canned beans, and eggs.