The developmental process that occurs at about 3 weeks of development in which the bilaminar embryonic disc transforms into the trilaminar embryonic disc containing the three primary germ layers is called
A)implantation
B)blastulation
C)gastrulation
D)neurulation
E)placentation

Question

Quizplus · Accepted Answer

Gastrulation is the process where the bilaminar embryonic disc transforms into the trilaminar embryonic disc containing the three primary germ layers: endoderm, mesoderm, and ectoderm. Implantation refers to the embedding of the blastocyst into the uterine lining, blastulation is the formation of the blastula from the zygote, neurulation is the development of the neural tube, and placentation is the formation of the placenta.

The Developmental Process That Occurs at About 3 Weeks of Development