Final answer:
Fetal alcohol syndrome (FAS) is a condition that occurs when a baby is exposed to alcohol in the womb, leading to birth defects and cognitive impairments. A harmful effect of FAS is developmental delays.
Step-by-step explanation:
Fetal alcohol syndrome (FAS) is a condition that occurs when a baby is exposed to alcohol in the womb. The alcohol crosses the placenta and affects the developing fetus, leading to a range of birth defects and cognitive impairments. One harmful effect of FAS is developmental delays, where children may have difficulty reaching milestones such as crawling, walking, and talking.