Gastrulation produces an oval, three-layered sheet known as the
A) chorion.
B) blastula.
C) embryonic disc.
D) morula.
E) blastocyst.

Question

Quizplus · Accepted Answer

Gastrulation is the process of forming the three germ layers (ectoderm, mesoderm, endoderm) and the embryonic disc, which is an oval-shaped, three-layered sheet that develops into the embryo. Choices A, B, D and E are not correct as they do not describe the specific outcome of gastrulation.

Gastrulation Produces an Oval, Three-Layered Sheet Known as the