Which statement about ionic distributions in nerve cells is true?

$*$select all that apply$$

Question $64$Select all that apply:

a$.$

at rest Potassium is higher outside cells than inside cells.

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b$.$

at rest Sodium is higher outside cells than inside cells.

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c$.$

protein concentration is higher inside cells than outside cells.

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d$.$

at rest free Calcium is higher inside cells than outside cells.

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e$.$

at rest The concentrations of all ionic species are the same for all nerve cells in all animals.

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f$.$

at rest the cell is permeable to all ion species$$

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g$.$

during an action potential the cell is permeable to all ion species$$

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h$.$

during a$$ post synaptic potential the cell is permeable to all ion species$$