Manish is studying the prenatal development of a fetus.He observes that the fetus is in its third week since conception and that the spinal cord is about to be formed.Which of the following periods in prenatal development is Manish most likely observing?
A)the germinal period
B)the embryonic period
C)the fetal period
D)the infant period

Question

Quizplus · Accepted Answer

The embryonic period lasts from the end of the germinal period (about 2 weeks after conception) through the eighth week of prenatal development. During this time, the major organs and systems begin to form, including the spinal cord. Therefore, Manish is most likely observing the embryonic period since the spinal cord is about to form and it is the third week since conception.

Manish Is Studying the Prenatal Development of a Fetus