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The Endowment for Human Development
The Endowment for Human Development
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Epidermis and Hair


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: 8 hetes korra az epidermisz vagy a külső bőr egy többrétegű hártyává válik, és áttetszősége nagyrészt megszűnik.

Kinő a szemöldök, és pihék jelennek meg a száj körül.

All ages referenced to fertilization, not last menstrual period.
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Spontaneous Movement
Spontaneous Movement
Reflexive Movement
Reflexive Movement
Epidermis and Hair
Epidermis and Hair
The Embryonic Period
The Embryonic Period
End of Embryonic Period
End of Embryonic Period
Kidneys Produce Urine
Kidneys Produce Urine
When does health begin? Find out now.
Buy the Biology of Prenatal Development DVD