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21 h 8 m, 16 nov 2002 año - Embryo develops

Descripción:

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.

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seth

BySeth Kirkpatrick
8 dic 2017
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0
418

fecha:

21 h 8 m, 16 nov 2002 año
Ahora mismo
~ 22 years ago

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