The document provides information about the digestive and excretory systems: 1) The digestive system is a group of organs that work together to convert food into energy through digestion. It includes the mouth, esophagus, stomach, small intestine, pancreas, liver, and large intestine. 2) The excretory or urinary system includes the kidneys, ureters, bladder, and urethra. The kidneys filter waste from the blood to produce urine, which is stored in the bladder and expelled from the body through the urethra. 3) An activity matches parts of the digestive and urinary systems like the pancreas, gallbladder, stomach, and kidneys to