Answer:
It is a compound sentence.
Explanation:
Compound sentence contains two independent clauses.
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
The abdominal wall muscle that is most superficial of the oblique muscles is the rectus abdominis (or A)