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.
The name cheddar might come from Cheddar, Somerset, in England. Or it might come from the cheddaring process, when the curds are stacked to help the whey drain off slowly (or the cheddaring process might get its name from the cheese.) Cheddar is a British cheese, which the Brits took with them when they settled countries such as the US, Canada, New Zealand and Australia.