8
Life is a characteristic distinguishing physical entities having 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 10/30/2014 8:54:39 PM
This answer has been confirmed as correct and helpful.
Confirmed by
jeifunk [10/30/2014 11:13:54 PM]