The pancreas is a gland that produces hormones to regulate blood sugar levels. it also serves two important functions in the process of digestion. one is the production of enzymes that break down lipids, nucleic acids, carbohydrates, and proteins. what is the other?

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?