__________ reduces the oxygen content and increases the carbon monoxide of the mother's blood.This quickly reduces the oxygen available for the fetus.Further,the respiration rate slows and speeds up its heart.

Question

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Smoking cigarettes reduces the oxygen content and increases carbon monoxide in the mother's blood, which quickly reduces the oxygen available for the fetus. This can lead to a wide range of negative consequences, including slowed respiration rate and changes in heart rate. Fetal alcohol syndrome (A) is caused by alcohol consumption during pregnancy, AIDS (C) primarily affects the immune system and does not directly impact fetal oxygen levels, and using cocaine (D) can also have negative effects on fetal development, but does not specifically reduce oxygen levels in the mother's blood.

__________ Reduces the Oxygen Content and Increases the Carbon Monoxide