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Life is a characteristic distinguishing physical entities having biological processes (such as signaling and self-sustaining processes) from those that do not, either because such functions have ceased (death), or because they lack such functions and are classified as inanimate.
Added 1/25/2015 5:34:47 PM
This answer has been confirmed as correct and helpful.
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yumdrea [1/25/2015 5:44:00 PM]