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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1856 año - N. Pringsheim observed how a sperm cells penitrated an egg cell
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Darin
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darin
30 oct 2017
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fecha:
1 ene 1856 año
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~ 169 years ago
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