Does the Definition Exclude All Non-Living Matter?
There are many examples of non-living matter maintained by their utilization of energy. Some examples are waterfalls, volcanoes, hurricanes, and stars. So, a definition of life requires something more to exclude such non-living matter. Adding something about reproduction might help: Read on Darwinian Evolution of RNA Molecules In Vitro Darwin, Evolution & Selection Charles Darwin and Evolution Theory Life is organized matter self-maintained by energy utilization and a process that reproduces Its structure for self-maintained energy utilization in the future. Special cases such as obligate symbiants and viruses are excluded from the definition because they are not “self-maintained” but depend on other life forms, although that distinction is almost arbitrary. By specifying that life must include a reproductive process, inanimate matter like waterfalls and hurricanes are excluded. However, some scientists might argue rather convincingly that stars reproduce. To eliminate stars as living
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