Metamorphosis to adult frogs would not occur. You are studying the hormonal control of metamorphosis in amphibians. If the anterior pituitary was prevented from releasing TSH, what would be the effect on tadpoles?
A) Metamorphosis to adult frogs would be increased five-fold.
B) Metamorphosis to adult frogs would not occur.
C) Calcium secretion in tadpoles would be inhibited.
D) Metabolism in tadpoles would be greatly increased.
E) Metamorphosis would proceed, but arrest after limb formation.

Question

Quizplus · Accepted Answer

TSH (Thyroid Stimulating Hormone) from the anterior pituitary gland stimulates the thyroid gland to release thyroid hormones, which are crucial for the metamorphosis of tadpoles into adult frogs. Without TSH, the thyroid hormones would not be released, preventing metamorphosis.

Metamorphosis to Adult Frogs Would Not Occur