The document discusses the key components and functions of the digestive and excretory systems. It covers the mouth, esophagus, stomach, pancreas, liver, small intestine, large intestine, kidneys, and homeostasis. The digestive system breaks down food through mechanical and chemical digestion to extract nutrients, while the excretory system, including the kidneys and bladder, filters waste from the blood and removes it from the body.

1. Digestive and Excretory System By: Jeffrey Yang and Heather Moreno

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