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The Endowment for Human Development
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Right- and Left-Handedness


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: bay 8 wik tεm, 75% pan di εmbrayo go sho di kכntro we di rayt an gεt. di wan we lεf, divayd ikwal bitwin di kכntrol we di lεft an gεt εn no כda wan we fכ prifa. dis na di fכs εvidεns bכt di rayt כ di lεft an dεn biheviכ

All ages referenced to fertilization, not last menstrual period.
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Ovaries Identifiable
Ovaries Identifiable
The Highly Complex Brain
The Highly Complex Brain
Right- and Left-Handedness
Right- and Left-Handedness
Rolling Over
Rolling Over
Spontaneous Movement
Spontaneous Movement
Reflexive Movement
Reflexive Movement
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