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.
:: Look at Where I Live! The species Cavia porcellus are not found in a natural habitat. Species such as Cavia aperea, Cavia fulgidia, and Cavia tschudii, which are closely related to the guinea pig, can be located in parts of South America.In a similar ecological niche as a cow would nurture, the wild guinea pigs survive on the grassy plains.: Look at Where I Live! The species Cavia porcellus are not found in a natural habitat. Species such as Cavia aperea, Cavia fulgidia, and Cavia tschudii, which are closely related to the guinea pig, can be located in parts of South America.