A teratogen is a harmful agent or substance that can cause malformations or defects in an embryo or fetus.
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Q214: In an experiment, it was found that
Q215: By the fourth month of prenatal development,
Q216: Epigenetics refers to the study of the
Q217: Most developmental psychologists believe that gene expressionis
Q218: Examples of teratogens include alcohol, cocaine, heroin,
Q220: In general, the greatest vulnerability to teratogens
Q221: Babies typically learn to sit up without
Q222: During the peak periods of brain development
Q223: The fetal brain is constantly changing, forming
Q224: Cells that have mutated or spontaneously changed
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