Which of the following chemical element is critical for the synthesis of T3 and T4 that is made in the thyroid gland? (QID 133204)

A. Florine
B. Zinc
C. Sulfur
D. Iodine

Which of the following endocrine organs is responsible for regulating calcium and phosphate homeostasis in the body? (QID 133202)

A. parathyroid gland
B. pancreas
C. pineal gland
D. thymus

Which two tissue types are correctly paired with respect to their germ layer tissue origin? (QID 133201)

A. stomach – brain
B. skeletal muscle – skin
C. brain – nails
D. duodenum – hair