Learn from the past and anticipate answering similar questions on the AP Exam this year... 1999 Exam - Question 4: Using the information in the pie charts above, identify two budgetary barriers that hinder the creation of new policy initiatives. Explain why each of the barriers you identified persists.
Glands lining the stomach secrete hydrochloric acid that dissolves food particles and protein-digesting enzymes, called pepsin. Final stages of digestion and most of the nutrient absorption occurs in next portion of the tract: the small intestine. The small intestine is divided into 3 segments-duodenum, jejunum, and ileum. The pancreas is a gland located behind the stomach.
The small intestine is the main area of the GI tract for absorption. The small intestine has three separate sections, the duodenum, jejunum and ileum.The majority of nutrient absorption occurs in the duodenum and jejunum. The duodenum absorbs carbohydrates, proteins, and minerals including calcium, magnesium, iron, chloride, sodium and zinc.he small intestine is the main area of the GI tract for absorption. The small intestine has three separate sections, the duodenum, jejunum and ileum.