The last tissue layer to be formed during gastrulation is the
A) endoderm.
B) ectoderm.
C) mesoderm.
D) gastroderm.
E) epiderm.

Question

Quizplus · Accepted Answer

The mesoderm is the last tissue layer to form during gastrulation. It gives rise to various structures such as muscles, bones, and connective tissue. The endoderm and ectoderm are formed earlier during gastrulation, while gastroderm and epiderm are not recognized as distinct tissue layers.

The Last Tissue Layer to Be Formed During Gastrulation Is