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Re: What constitutes Life?
One thing that is left out is life needs water to exist. There are hypothetical life that use other solvents, but these only exist on paper. No substitutes for water has ever worked within a cell, and allowed all the functions of life.
We can take DNA out of a cell and the cell can still do everything required of life except reproduce. But if we remove the water, all the criteria of life are lost. We can substitute for water, to get a few back, but it is no longer considered alive.
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