The heart,lungs,and brain begin to form during the __________ period of prenatal development.
A)blastocyst
B)embryonic
C)zygotic
D)fetal

Question

Quizplus · Accepted Answer

The embryonic period is the stage of prenatal development that occurs from the second week to the eighth week after conception. It is during this period that the organs and systems begin to form and the heart, lungs, and brain develop. The blastocyst and zygotic periods occur earlier in development, while the fetal period occurs later in development.

The Heart,lungs,and Brain Begin to Form During the __________ Period