Final answer:
Drinking and smoking during fifth week of gestation can have serious consequences on the fetus, including fetal alcohol syndrome (FAS) and increased risk of complications.
Step-by-step explanation:
If a woman drinks and smokes during the fifth week of gestation, it can have serious consequences on the developing fetus. Alcohol consumption can lead to a condition called fetal alcohol syndrome (FAS), which can cause physical and cognitive abnormalities in the child. Smoking, on the other hand, increases the risk of complications such as premature birth, low birth weight, and developmental issues.
In the case of alcohol, it is important to note that there is no known safe level of alcohol consumption during pregnancy. Even moderate or low levels of alcohol can have harmful effects on the developing fetus. Smoking, too, should be completely avoided during pregnancy to minimize the risks to the baby's health.
Learn more about Consequences of drinking and smoking during pregnancy