biogenesis-1 by Progeny2k3

It took more than a billion years for prokaryotic cells to evolve into eukaryotic cells, which have a nucleus and other complex structures. This step alone is so improbable that it may have happened only once in the history of the universe.
As the progeny of biogenesis, we have a responsibility to preserve and cherish the life that we have, and to explore the mysteries of the cosmos that gave birth to us.

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