Jena is reviewing her notes on action potentials for a quiz. She makes an extra notation that before the action potential when the neuron is at rest, sodium channels _____.

A. are open and allow sodium ions to flow through easily
B. are closed and don't allow sodium to pass through.
C. are partially open, so sodium leaks through slowly
D. are partially open but at equilibrium, so the sodium doesn't move


Answer: B

Psychology

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John Stuart Mill proposed the "harm principle," which basically is the idea that every individual should:

A. limit their behavior to that which is not harmful to any living thing. B. be controlled by social institutions at all times to limit his/her ability to do harm. C. be imprisoned for life if they harm others or themselves. D. have the utmost freedom over their own actions unless they harm others.

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Which example illustrates age discrimination?

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Psychology