Reproduction is not nor has it ever been proven as a core mission of life and shouldn’t exist in that list. It has nothing to do with your core basis of life. It’s only to continue a life line or a cell decision reliant on environment. But it is not a core requirement in life.

It may be continuing a line but it is not proven as a core ‘mission’ of anything. It’s a bias decision and much of that relies on environment in which the cell lives in. It’s as much a ‘core mission’ as the effort of immortality should an environmental condition not be met. Some species continue their strain of life by cloning and some if even just one has achieved immortality and has no necessary core mission to reproduce.