Most major structural birth defects are due to problems that occur:
A)during the germinal stage of prenatal development
B)during the fetal stage of prenatal development
C)once the fetus has reached the age of viability
D)during the embryonic stage of prenatal development

Question

Quizplus · Accepted Answer

During the embryonic stage of prenatal development, which occurs from weeks 3-8 of pregnancy, the major structures and organs of the body are formed. It is during this critical period that most major structural birth defects occur due to problems with the development of these structures.

Most Major Structural Birth Defects Are Due to Problems That