The attachment of the blastocyst to the uterine wall begins the ________ period of prenatal development.
A) germinal
B) embryonic
C) fetal
D) zygotic

Question

Quizplus · Accepted Answer

The attachment of the blastocyst to the uterine wall marks the beginning of the embryonic period of prenatal development. The germinal period occurs from fertilization to implantation, and the fetal period begins at the end of the embryonic period and lasts until birth. The zygotic period refers to the time from fertilization to the formation of the blastocyst, which occurs during the germinal period.

The Attachment of the Blastocyst to the Uterine Wall Begins