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this is deeplt biological. (unless your religious, lol) basicly it has to do with cells splitting apart and having different roles so that gametes can be formed by male and female sex cells. this all happened billions of years ago with single celled organsims began to evolve to multicellular organisms and using meiosis to sexually reproduce. sexual reproduction was possible advantageous because it allowed for greater genetic variation and survival of species as opposed to pure mitosis like you see in a virus.

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16y ago

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