Includes bibliographical references (p. 44) and index.
Contents:
Take a deep breath -- Must have air! -- Millions of micro-bubbles -- Breathing and talking -- Hardworking heart -- Blood vessels -- Blood.
Summary:
Explains how the parts of the respiration and circulation systems work and illustrates the actions and functions of breathing, talking, the heart, and blood through interesting facts.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.