GED Science Practice

The pancreas is the gland located behind the stomach and plays a crucial role in digestion and blood sugar regulation. It has both endocrine and exocrine functions; the exocrine part produces digestive enzymes that are released into the small intestine to aid in the breakdown of carbohydrates, proteins, and fats. This gland's location is significant as it allows these enzymes to efficiently reach the digestive tract after they are produced. The other options are not relevant to the anatomy of the human body. A parasite refers to an organism that lives on or in a host, often causing harm. Ozone is a form of oxygen found in the atmosphere that has no relation to human glands. Penicillin is an antibiotic used to treat bacterial infections and does not pertain to body structures or glands. Thus, the pancreas is the only correct choice related to the exocrine gland located behind the stomach.