During which of these time periods do teratogens have the most serious effects on fetal development?

Name: During which of these time periods do teratogens have the most serious effects on fetal development?
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Question

Quizplus · Accepted Answer

The period of organogenesis, which occurs during the first 8 weeks of pregnancy, is the most critical for fetal development as this is when organs and body systems are forming. Exposure to teratogens during this time can result in serious birth defects and developmental issues.

During Which of These Time Periods Do Teratogens Have the Most