All body parts eventually develop from the layers of the embryo, with the ______ producing the internal parts and the _______ producing the surface parts.
A) endoderm; mesoderm
B) mesoderm; endoderm
C) endoderm; ectoderm
D) ectoderm; endoderm

Question

Quizplus · Accepted Answer

The endoderm is the innermost layer of the embryo and develops into internal structures such as the digestive tract and lungs, while the ectoderm is the outermost layer and forms surface structures like the skin and nervous system.

All Body Parts Eventually Develop from the Layers of the Embryo