Sodium and potassium ions cross the neuron's membrane to cause which of the following processes?

A) action potential
B) passive transport
C) refractory period
D) transmission


A

Biology & Microbiology

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Which of the following are phagocytic glial cells that fight infection and remove debris?

A) microglia B) oligodendrocytes C) Schwann cells D) myelin sheath cells E) astrocytes

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A target cell that is affected by a particular steroid hormone would be expected to have

A) an intracellular receptor protein that binds the hormone. B) a cell-surface receptor protein that binds the hormone. C) enzymes that are activated or inactivated by the intracellular hormone-receptor complex. D) enzymes that are activated or inactivated by the hormone's second messenger.

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Vasily thinks that drinking alcohol heightens his alertness and awareness of his surroundings and that he is a better driver after drinking several beers. Persuade him otherwise

What will be an ideal response?

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