Question

The longest period of prenatal development is the
A) Germinal period
B) Fetal period
C) Embryonic period
D) None

Answer 1

The germinal period, it begins with conception and ends when the blastocyst is fully implanted into uterine tissue. Next, the embryonic period lasts from implantation until about 8 weeks from the time of conception. This is the most crucial period of prenatal development.