In the course of prenatal development, by the end of the _____ period, the heart begins to beat, the arms and legs become more differentiated, the face starts to form, and the intestinal tract appears in human beings.
A)germinal
B)fetal
C)conception
D)embryonic

Question

Quizplus · Accepted Answer

The description given in the question matches the embryonic period, which is the period between weeks 3-8 of prenatal development. During this period, the major organs and systems begin to form, including the heart, limbs, face, and digestive system.

In the Course of Prenatal Development, by the End of the _____