The kidney ducts,bladder,thyroid gland,and tonsils all develop from the primary germ layer called the
A) ectoderm
B) mesoderm
C) endoderm
D) none of the above

Question

Quizplus · Accepted Answer

The endoderm is the primary germ layer that gives rise to the lining of the digestive and respiratory tracts, as well as to organs such as the pancreas, liver, thyroid gland, and urinary bladder. The kidney ducts and tonsils also derive from the endoderm. Therefore, the correct answer is C) endoderm.

The Kidney Ducts,bladder,thyroid Gland,and Tonsils All Develop from the Primary