Anterior Pituitary Gland
Thyroid Stimulating Hormone
Thyroxine Thyroid Gland
149. The diagram above shows the relationship between the pituitary gland, thyroid-stimulating hormone, the thyroid gland, and thyroxine. An increase in the amount of thyroxine causes a decrease in the production of thyroid-stimulating hormone. This biological process is called
(A) positive feedback
(B) negative feedback
(C) translocation
(D) countercurrent exchange