Jim and Laurie Are Expecting Their First Child

Multiple Choice

Jim and Laurie are expecting their first child. It is approximately fifth week after conception. The organ systems of their baby are differentiating at greatly varying rates. For example, the circulatory system is almost functional. Which stage of prenatal development is their child in?

A) Germinal stage
B) Zygote stage
C) Embryonic stage
D) Fetal stage