Final answer:
Alcohol use during the embryonic period of prenatal development can result in teratogenic effects, such as fetal alcohol spectrum disorders (FASD) and fetal alcohol syndrome (FAS). Children with FASD may have cognitive deficits, developmental delays, behavioral issues, and distinctive facial features.
Step-by-step explanation:
Alcohol use during the embryonic period of prenatal development can have teratogenic effects on the developing fetus. The most severe consequence of alcohol use during pregnancy is fetal alcohol spectrum disorders (FASD) with a direct consequence of fetal alcohol syndrome (FAS). Children with FASD may experience cognitive deficits, developmental delays, behavioral issues, and distinctive facial features.