The epithelial lining of the small intestine forms from which germ layer?
I. Endoderm
II. Mesoderm
III. Ectoderm
A. I only
B. II only
C. III only
D. I and II
Click for Explanation
The epithelial lining of the gastrointestinal tract, liver, gallbladder, and pancreas originates from the endoderm.
A. I only, Correct
B. II only
C. III only
D. I and II
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