There Are Probably No Pure Races

question 24

True/False

There are probably no pure races.

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Definitions:

Depolarization

The process during which a cell's membrane potential becomes less negative, making it more likely to fire an action potential.

Absolute Refractory Period

A period immediately following an action potential during which a neuron is incapable of generating another action potential, no matter the stimulus strength.

Stimulation

The act of applying a stimulus to generate a response in an organ or tissue.

Plasma Membrane

A semi-permeable membrane found in cells that separates the interior of the cell from its external environment and regulates the movement of substances in and out of the cell.