Which is likely to be the most critical period of fetal development and why?
A) zygote,because most of the zygote is particularly vulnerable to teratogens
B) embryo,because most of the internal organs are formed during this period
C) fetus,because the fetus cannot survive outside the womb
D) infant,because the baby is finally exposed to environmental effects

Question

Quizplus · Accepted Answer

During the embryonic period, most of the internal organs are formed and the embryo is highly vulnerable to teratogens. This is a critical period for development as any damage that occurs during this time can have long-term effects on the individual's health and survival. Additionally, during the fetal period, basic structures have already formed, and the fetus is mainly growing and maturing, making this period relatively less critical than the embryonic period.

Which Is Likely to Be the Most Critical Period of Fetal