The usual template against which life is judged to exist or not includes: respiration; reproduction; metabolizes food; is not rigidly fixed in place (but some forms of life are rather sessile); for...
A systemic definition of life is that living things are self-organizing and autopoietic (self-producing). It is still a challenge for scientists and philosophers to define life in unequivocal terms....
The philosophical question "What is the purpose or meaning of life?" means different things to different people. The vagueness of the query is inherent in the word "meaning", which opens the question...