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The Endowment for Human Development
The Endowment for Human Development
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Response to Touch


6 weeks, 6 days

From The Biology of Prenatal Development.Buy Now

Script: 배아의 입 주위를 만지면 배아는 반사적으로 머리를 움츠린다

All ages referenced to fertilization, not last menstrual period.
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Response to Touch
Response to Touch
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