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blastula et gastrula


jeanne_31

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Il y a 4 heures, ElCassoulet a dit :

@jeanne_31 Le stade blastula correspond à la fin de la segmentation, la gastrula n'est obtenue qu'après via la gastrulation.

cool :) merci 

 

et j'aurais une autre question rien à voir

 

les sporophytes des mousses ils ont un sporange ou pas ? merci ! 

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