This volume explores the fascinating world of cells and explains the different kinds of cells that make up the human body.

The Respiratory System

by Nuria Roca and Marta Serrano

Published 30 January 1996
-- Investigates nature's hidden processes -- Outlines the most important functions of the human body and plant life in fascinating detail -- Exceptional color illustrations -- Includes an experiments section Follow the route air takes when it enters and leaves our bodies.