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First forms of life lacked the ability to synthesize their own nutrients; they required performed molecules which made them heterotrophs -energy was present in the form of heat - electricity - solar radiation - including x rays and ultraviolet light

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1. First forms of life lacked the ability to synthesize their own nutrients; they required performed molecules which made them heterotrophs -energy was present in the form of heat - electricity - solar radiation - including x rays and ultraviolet light





 
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