Task: Text Categorization
Input (English): In a fetus, ghrelin is produced more in this organ than in the stomach, which is reversed in full-grown organisms. One bulge on this organ's surface is called the omental tuber, while some people have a second duct in this organ, known as the duct of Santorini. A lack of this organ's namesake polypeptide is linked to obesity in rats. This organ produces trypsinogen, the zymogen form of trypsin. One type of cell in this organ is stimulated by cholecystokinin and secretin. This organ's duct of Wirsung meets the bile duct at the ampulla of Vater, and transports enzymes produced by its acinar cells to the duodenum. For 10 points, name this organ whose islets of Langerhans secrete glucagon and insulin.
Output (English): Science