Keys to insect success: physiological traits.
Author of the article:WANG Chen-Zhu
Author's Workplace：(Institute of Zoology,Chinese Academy of Sciences, Beijing 100080,China).
Key Words：Insecta; physiological traits; exoskeleton; metamorphosis; reproduction; food habit
Abstract：Insects are the most successful animals of all living species on the earth. From the point of view of physiology,the keys to their success are discussed including their body size,exoskeleton,ability to fly,tracheal system,metamorphosis,reproduction,nervo