It is kind of a strange question but by the process of elimination, I would go with petrification.
Its called petrified wood.
hope I Helped
Explanation:
Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus causes the release of a substance whose effects then inhibit further release. In this way, the concentration of hormones in blood is maintained within a narrow range.
Answer:
T3 (tri-iodothyronine) and T4 (thyroxine).
Explanation:
