Examlex
Bacteria and Archaea are most easily distinguished from each other by their _____.
Novocain
A synthetic compound used as a local anesthetic in medical and dental procedures; it is often substituted for safer and more effective anesthetics today.
Sodium
A chemical element (Na) that is essential for life, involved in osmoregulation and nerve function.
All-Or-None Law
The principle that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fiber will fire.
Action Potential
A momentary change in electrical potential on the surface of a cell, especially a nerve or muscle cell, that occurs when it is stimulated, leading to the transmission of an electrical impulse.
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