Tobacco smoke can have several harmful effects on a developing baby. Among the options you've listed, the most relevant effect of tobacco smoke is that it increases the baby’s heart rate.
Additionally, tobacco smoke can lead to several negative outcomes during pregnancy, including:
- Low birth weight: Contrary to one of the options you provided, exposure to tobacco smoke is more commonly associated with lower birth weight rather than an increase.
- Reduced oxygen supply: Smoking can decrease the amount of oxygen available to the fetus, which can result in developmental issues.
- Impairment of cell growth: Nicotine and other harmful substances in smoke can interfere with normal cell growth and development.
Overall, smoking during pregnancy can have serious consequences for both the mother and the baby.
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