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In biology a signal or biopotential is an electric quantity (voltage or current or field strength), caused by chemical reactions of charged ions. Another use of the term lies in describing the transfer of information between and within cells, as in signal transduction. Biological signals can also be seen as an example of signal (information theory).
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Signal_(biology)". A list of authors is available in Wikipedia.|