Final answer:
Smoking during pregnancy can lead to lower birth weights and preterm births. It also increases the risk of miscarriages and stillbirths.
Step-by-step explanation:
Exposure of a developing embryo or fetus to cigarette smoke can have detrimental effects on the child. The mother's cigarette use can lead to lower birth weights and increased risk of preterm births. Additionally, smoking during pregnancy has been associated with a higher risk of miscarriages and stillbirths.