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21 St. 8 Min, 16 Nov 2002 Jahr - Embryo develops

Beschreibung:

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.

Zugefügt zum Band der Zeit:

seth

BySeth Kirkpatrick
8 Dez 2017
0
0
421

Datum:

21 St. 8 Min, 16 Nov 2002 Jahr
Jetzt
~ 22 years ago

Abbildungen:

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