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Alerta global: surto do vírus NIPAR na Ásia assusta o mundo Países asiáticos em alerta máximo com novo surto do vírus NIPAR , letalidade de 75-80%, transmitido por morcegos frugívoros, frutas... #paises #noticias #mundo
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O óvulo pode “decidir” quem entra? Você provavelmente já ouviu que, na fecundação, o espermatozoide mais rápido vence. Mas a ciência mostra que não é tão simples assim. Pesquisas na área de biologia reprodutiva indicam que o óvulo humano pode ter um papel ativo nesse processo, liberando sinais químicos que atraem certos espermatozoides — fenômeno chamado quimiotaxia. Isso mostra que não é só velocidade… existe compatibilidade biológica envolvida. 📚 Referências científicas: Pesquisa publica
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