When a nerve fiber is polarized, the concentration(s) of
A) Na+ and K+ are higher on the inside of the membrane.
B) Na+ is higher on the outside of the membrane and K+ is higher on the inside.
C) Na+ is higher on the inside of the membrane and K+ is higher on the outside.
D) Na+ and K+ are higher on the outside of the membrane.
B
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Fill in the blank(s) with the appropriate word(s).
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a. true b. false
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