Their location, or layer
The cells produce three germ layers:
endoderm- becomes the gut
mesoderm- becomes muscle, skeletal system, some organs, and connective tissure
ectoderm- becomes skin and nervous system
Answer:
Disconformity
Explanation:
Disconformity is the breaking end between non sedimentary and sedimentary rocks. It is when parallel layers between sedimentary rocks have no contacts with each other which indicate period of erosion or non disposition.