div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=1-la-fcondationhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: 1 La fécondation loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206251362b23dd19b3f3d42db4b3e2ehtml5thumbnails1jpg width=140 height=200 divp1 La fécondation :p p2 Les sept premiers jours de l’embryon : BELIN SVT 4èmepdiv