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5 Cards in this Set
- Front
- Back
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the fertilized egg; it enters a 2 week period of rapid cell division and develops into an embryo.
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zygote
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the developing human organism from about 2 weeks after fertilization through the second month.
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embryo
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the developing human organism from 9 weeks after conception to birth.
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fetus
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agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm.
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teratogens
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a baby's tendency, when touched on the cheek, to turn toward the touch, open the mouth, and search for the nipple.
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rooting reflex
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