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).
Next. Gas exchange surfaces allow living things to obtain the oxygen they need for respiration. Large organisms need organs for gas exchange, such as gills in fish and lungs in mammals. The parts of the human respiratory system work together to get air into and out of the body.The respiratory system protects itself from disease but there are still diseases of the lungs, including asthma.arge organisms need organs for gas exchange, such as gills in fish and lungs in mammals. The parts of the human respiratory system work together to get air into and out of the body. The respiratory system protects itself from disease but there are still diseases of the lungs, including asthma.