junior03august
junior03august junior03august
  • 20-05-2017
  • Biology
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O que é puberdade e adolescência e o que são caracteristicas sexuais primarias e secundarias da espécie humana

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kkatyy
kkatyy kkatyy
  • 20-05-2017
Las características sexuales primarias y secundarias se refieren a rasgos físicos específicos que diferencian a machos y hembras en especies sexualmente dimórficas; Es decir, especies en las que los machos y hembras se ven diferentes. Las características sexuales primarias están allí desde el nacimiento (por ejemplo, penes vs. vaginas). Las características sexuales secundarias surgen en la pubertad (como las voces bajas y las barbas en los hombres, las voces altas y el pelo facial en las mujeres).
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