I'm sorry but I have to disagree.Interesting that we've such clear definitions of death, but not life....~S~
"Life" is easy to observe and to detect.
Death OTOH (in my view) is a little more subjective.
Not a big deal but I think it's only "complicated" by some people's personal preferences and biases.
Kind of revealing how leftards who have no problem recognizing an amoeba as a "single celled organism" / member of their species. . . but they can't bring themselves to acknowledge the same is true of a human being that is in the zygote stage of their own life, growth, and development.