During gestation, at the end of the period of embryonic growth:
A)the cells have specialized into three germ layers
B)the first tissue has formed
C)many tissues have formed, but are not yet organized
D)all of the organ systems have been formed

Question

Quizplus · Accepted Answer

By the end of the embryonic period, which is typically around the 8th week of gestation, all major organ systems have begun to form, marking the transition to the fetal period where these systems will continue to develop and mature.

During Gestation, at the End of the Period of Embryonic