The Digestive and Excretory Systems

Download or read book The Digestive and Excretory Systems written by Susan Dudley Gold and published by Enslow Publishing. This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The digestive and the excretory systems take the food we eat through a marvelous maze. Every bite travels from the mouth to the stomach to the intestines. Food is separated into nutrients and waste products, which both systems expel. Along the way, the digestive system mashes, chops, crushes, dissolves, and breaks down the food into molecules of nutrients. These provide energy to the rest of the body. The excretory system filters the blood and regulates the amount of salt and water in the body. Learn how these remarkable systems work together to bring us life-giving nutrients and rid our bodies of waste. Book jacket.