vevoshirt: Retro Groovy School’s Out For Summer Graduation Teacher T Shirt

Thứ Ba, 30 tháng 5, 2023

Retro Groovy School’s Out For Summer Graduation Teacher T Shirt

These processes take a Retro Groovy School’s Out For Summer Graduation Teacher T Shirt years or so and once the Earth becomes potentially capable of supporting life, we actually see the earliest signs of life during that period. It could have just as easily taken another billion years to hit upon the first self-replicating molecule. We don’t know the exact details of how life got started but we do actually know lot about the kinds of processes it would have required. The key event would have been the first self-replicating molecule – which probably was not life as we know it, but an RNA precursor. The next key event would have been the conversion from RNA to DNA-based life. Forming the right kinds of molecules in the right concentrations at the right Ph levels isn’t something a new world is likely to hit upon immediately, and indeed, it seems like it took at least a few hundred million years before we see the first artifacts of life on Earth.

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