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Digestion and Excretion (The Human Machine)
Digestion and Excretion - The Human Machine
Author: Louise Spilsbury
What are villi? How do bacteria help the digestive system? Why is fiber important? The Human Machine asks the questions that young people want answered. Each chapter contains a different question, so readers can develop their knowledge.
ISBN-13: 9781432909055
ISBN-10: 1432909053
Publication Date: 9/1/2008
Pages: 32
Reading Level: Ages 9-12
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Publisher: Heinemann Raintree
Book Type: Library Binding
Other Versions: Paperback
Members Wishing: 0
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