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O ÓVULO ESCOLHE O ESPERMATOZÓIDE PARA FECUNDAR. NÃO SE TRATA DO MAIS RÁPIDO SE TRATA DE ESCOLHA.
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Estudos recentes mostram que não é o espermatozoide mais rápido ou mais forte que vence a corrida. - O óvulo escolhe quem ele permite entrar com base em certas conexões químicas. - Uma vez dentro, a camada externa se fecha, impedindo a entrada de outros, e a cabeça do espermatozoide se une ao núcleo do óvulo. #fertilização #espermatozoide #reprodução
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E se outro espermatozoide tivesse ganhado a corrida?
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