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The Endowment for Human Development
The Endowment for Human Development
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Gender Differences


3 months, 2 weeks

From The Biology of Prenatal Development.Buy Now

Script: تمایزات رشدی جنسی برای اولین بار پدیدار می شوند. بطور مثال، رویان ھای زنان نسبت به مردان حرکت فک را زود زود ارائه می دھد.

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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