Which of the Following Statements Is True of the Layers

Multiple Choice

Which of the following statements is true of the layers of cells of an embryo?

A) The mesoderm develops into the nervous system and brain, sensory receptors, and skin parts.
B) The ectoderm primarily produces surface parts.
C) The endoderm is composed of the mesoderm and the ectoderm.
D) The mesoderm primarily produces internal body parts and sensory receptors.