Define what are the characteristics of life

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This is to be a philosophical discussion... What are the characteristics of life? There are some things, like planets, stars, viruses and prions that have many of the characteristics of life, but are not alive. ... How is it that these (or something you've researched) come close to being alive, but are not? Do you think that the definition of what is alive should be changed?

Reference no: EM1338614

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