are there not life-forms on earth er in the deep sea that do not rely on the oxigen cycle for ife's function, energy use, reproduction, growth?
Yes, there are. See http://phys.org/news189836027.html
sorry if I did not make my point clear,but when I refer to breathing I dont mean that the act of breathing is the spirit but is used in terms of taking breath (air oxygen)which is the bodies way of staying alive by using the force of the air in our lungs.
And one more, galaxie. You don't mean breathing but rather, the act of taking breaths? It's a distinction without a difference. How at all is it different?