Review.  1 Professor Hofstadter has written a superb book ... The Age of Reform entitles Hofstadter to rank with C. Vann Woodward as a master of creative synthesis, as an interpreter of the past who can add to cold data an emphatic insight that transforms history from a book of the dead into a chronicle of life.-- American Political Science Review.
Ventilation systems. All multicellular organisms have mechanisms for drawing oxygen-rich air (or water) into their bodies and removing carbon dioxide-rich air (or water).A closer look at insect breathing systems makes it easier to appreciate the functions of the more familiar human ventilation system.entilation systems. All multicellular organisms have mechanisms for drawing oxygen-rich air (or water) into their bodies and removing carbon dioxide-rich air (or water).
The respiratory system consists of a group of ducts that are capable of filtering air from the environment before entering the pulmonary system.Air is not only filtered, but is also moistened and warmed before entering the lungs.The organs of the respiratory system are designed to perform two basic functions: (1) they serve as an air distributor, and (2) they serve as a gas exchanger for the body.This system also effectively (1) filters, (2) warms, and (3) humidifies the air we breathe.he respiratory system consists of a group of ducts that are capable of filtering air from the environment before entering the pulmonary system.