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module 42
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| Question | Answer |
|---|---|
| Developmental psychology | a branch of psychology that studies physical, cognitive, and social change throughout the life span. |
| zygotes | the fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo. |
| embryo | the developing human organism from about 2 weeks after fertilization through the second month. |
| fetus | the developing human organism from 9 weeks after conception to birth. |
| Teratogens | (literally, “monster makers”) agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm. |
| fetal alcohol syndrome (FAS) | physical and cognitive abnormalities in children caused by a pregnant woman’s heavy drinking. In severe cases, signs include a small, out-of-proportion head and abnormal facial features. |
| habituation | decreasing responsiveness with repeated exposure to a stimulus. |