ACTH is a segment of a much larger glycoprotein prohormone molecule called proopiomelanocortin (POMC). POMC is synthesized by the corticotrophs of the anterior pituitary, which constitute about 10 percent of the gland.
Caviar harvested from an older fish is the more rare, and more sought after, white caviar. The Beluga sturgeon are primarily found in the Caspian Sea, which is surrounded by Iran, Azerbaijan, Russia, Kazakhstan and Turkmenistan. The other primary source of Beluga sturgeon is the Black Sea near Russia and Romania.
Quick Answer. Watermelon comes from the Kalahari Desert in Africa, and the first recorded watermelon harvest occurred in Egypt approximately 5,000 years ago. Merchant ships carried the fruit from Egypt to countries along the Mediterranean Sea, and it spread to China, the rest of Europe and America in later centuries.