Synopsis The fields of biophysics, biochemistry and molecular biology have developed from physiological research. In the case of insects, which make up for a sizeable component of organic life, in addition to making visible immense diversity in biological life, physiology becomes more interesting and viable. This book, one in the series on insects and the world they inhabit, has been written as a manual which brings under discussion the principles, processes and concepts of insect physiology, taking due care to include illustrations and diagrams, the better to foster an understanding of visual information. Written in an easy-to-follow, lucid manner, the look makes efforts to include within its content critical perspectives too, so as to enhance the comprehension of the subject.