The embryo's inner layer of cells is called the
A) endoderm.
B) ectoderm.
C) mesoderm.
D) cryoderm.

Question

Quizplus · Accepted Answer

The inner layer of cells in the embryo is called the endoderm, which will develop into the digestive and respiratory systems of the body. The ectoderm will develop into the skin and nervous system, while the mesoderm will develop into the muscles, bones, and circulatory system. "Cryoderm" is not a term commonly used in embryology.

The Embryo's Inner Layer of Cells Is Called the