The Respiratory System (2015)

by Gray, Susan H.

Series:Human Body (2015) (Child's World)

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AR Book Level
4.4
AR Points
0.5
Word Count
1,747
Interest Level
Middle Grades (MG 4-8)
Genre
Nonfiction
AR Quiz #
169411 EN

About this book

This introduction to the human respiratory system explains what it is and how it works, looks at the role of blood in the respiratory system, and discusses why breathing problems occur.

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