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Psychology Test 2, Module 8
Psychology Test 2, Module 8
6
Psychology
Undergraduate 1
02/28/2009

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Term
zygote
Definition
the fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo. Contains about 100 cells
Term
embryo
Definition
the developing human organism from about 2 weeks after fertilization through the second month
Term
fetus
Definition
the developing human organism from 9 weeks after conception to birth
Term
teratogens
Definition
agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm
Term
fetal alcohol syndrome (FAS)
Definition
physical and cognitive abnormalities in children caused by a pregnant woman's heavy drinking. In severe cases, symptoms include noticeable facial misproportions.
Term
rooting reflex
Definition
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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