Question

the period of prenatal development in which cell division begins and implantation occurs on the uterine wall is referred to as the ____ period.
a fetal
b germinal
c amnion
d embryonic

Explanation:

Prenatal development has three main periods. The germinal period starts at conception, involving initial cell division and implantation on the uterine wall. The fetal period focuses on growth, the embryonic on organ formation, and amnion is a membrane, not a period.

Answer:

B. germinal