What Is the Primary Reason That Teratogenic Agents Cause Serious

question 39

Multiple Choice

What is the primary reason that teratogenic agents cause serious malformations of organs and systems during the first trimester of pregnancy?

• A) the size of the zygote and/or embryo
• B) the rapid differentiation of organs and systems taking place during that time
• C) teratogenic agents can pass through the placenta only during that period
• D) the immune system and liver are not yet functioning

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