Which of the Following is NOT a Germ Layer of the Embryo

Question

Which of the following is NOT a germ layer of the embryo?
A) Periderm
B) Endoderm
C) Ectoderm
D) Mesoderm

Accepted Answer

Periderm is not a germ layer of the embryo. The three germ layers are ectoderm, mesoderm, and endoderm.