Which of the following statements is true of prenatal development in humans?
A)The heart begins to beat during the embryonic period.
B)The rate of cell differentiation decreases during the embryonic period.
C)The intestinal tract first appears in the fetal period of prenatal development.
D)First and the second week of prenatal development are called the fetal period.

Question

Quizplus · Accepted Answer

During the embryonic period (weeks 3-8), the heart begins to beat and major organs and body systems begin to form.

Option B is incorrect because the rate of cell differentiation actually increases during the embryonic period.

Option C is incorrect because the intestinal tract actually develops during the embryonic period.

Option D is incorrect because the first two weeks of prenatal development are actually considered the germinal period, not the fetal period.

Which of the Following Statements Is True of Prenatal Development