Substances such as alcohol and the German measles virus can pass through the placental barrier and cause injury or developmental defects in the fetus.

Question

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Alcohol and the German measles virus are examples of teratogens, which are substances or agents that can cross the placental barrier and cause harm to the developing fetus. Exposure to these teratogens during pregnancy can lead to a range of developmental abnormalities, including physical deformities, cognitive impairments, and behavioral problems.

Substances Such as Alcohol and the German Measles Virus Can