Lilou Posted October 14, 2020 Share Posted October 14, 2020 Bonjour cet itemm me pose pb : B : la 3° semaine est marquée par la gastrulation, étape qui permet le passage d’une structure plane discoide à une structure cylindrique Faux pq ? Merci de vos rep Quote Link to comment Share on other sites More sharing options...
Ancien Responsable Matière Solution sophiie Posted October 14, 2020 Ancien Responsable Matière Solution Share Posted October 14, 2020 Coucou @Lilou! C'est faux car ça correspond à la définition de la délimitation qui a lieu lors de la 4ème semaine. La gastrulation permet de former le disque embryonnaire tridermique Quote Link to comment Share on other sites More sharing options...
Lilou Posted October 14, 2020 Author Share Posted October 14, 2020 AH mais oui... merci bcp pour ta rep sophiie 1 Quote Link to comment Share on other sites More sharing options...
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