21 h 8 min, 16 nov 2002 ans - Embryo develops
Description:
Cellular division takes place and the embriotic stage begins. The brain, spinal chord, heart, gastriointestines develops during the first week or two. Arms and leg buds become visible and heart begins to beat.Ajouté au bande de temps:
Date:
21 h 8 min, 16 nov 2002 ans
Maintenaint
~ Il y a 22 ans