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The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
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Human Development


7 days

From The Biology of Prenatal Development.Buy Now

Script: Du point de vue biologique, "le développement humain commence à la fertilisation," lorsqu'une femme et un homme combinent chacun 23 de leurs propres chromosomes par l'union de leurs cellules reproductrices.

All ages referenced to fertilization, not last menstrual period.
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Amnion and Germ Layers
Amnion and Germ Layers
Early Embryonic Development
Early Embryonic Development
Human Development
Human Development
Heart and Circulatory System
Heart and Circulatory System
The Folding of the Embryo
The Folding of the Embryo
The Folding of the Embryo
The Folding of the Embryo
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