There is a conventional list of nine signs with which any living being must comply: nourishment, breathing, excretion, growth, evolution, mortality, reproduction, heredity, and sentience. Although, inanimate nature often meets these criteria as well. Furthermore, the number of these features may vary depending on what scientific sources we consult. Note: that what guarantees survival in one situation may prove useless in another. Thus, seeking to establish vitality of any particular being, we cannot rely on the analytical method.
Does my nature fit these features?
I show you these signs of life