Shortly After Gastrulation, the Body and Organs of the Embryo

Question

Shortly after gastrulation, the body and organs of the embryo begin to form. This process is called
A) cleavage.
B) implantation.
C) placentation.
D) embryogenesis.
E) germination.

Accepted Answer

Embryogenesis is the process of the formation of the body and organs of the embryo, which occurs after gastrulation. Cleavage is the rapid cell division that occurs immediately after fertilization. Implantation is the attachment of the embryo to the uterine wall, which occurs after cleavage. Placentation is the formation of the placenta, which occurs after implantation. Germination is the process of a seed becoming a plant, which is not relevant to embryonic development.