In the sixth book of his acclaimed series on the human body, Simon explains how the digestive system turns meals into energy, nutrients, and waste. Illustrated with 19 full-color photos, this title reveals information in a clear, scientific manner.

Guts: Our Digestive System 2005, HarperCollins Publishers, New York, NY

ISBN-13: 9780060546519

Hardcover

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Guts: Our Digestive System 2005, Collins Publishers, New York, NY

ISBN-13: 9780060546526

Hardcover

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