Insect Physiology is a broad field of study that delves into the internal processes of insects. It includes areas such as metabolism, nervous system, digestive system, respiratory system, and reproductive system. Synonyms for the term "Insect physiology" include "Entomology," "Insect Biology," and "Invertebrate Physiology." Entomology refers to the study of insects as a whole while Insect Biology focuses on the individual behaviors and characteristics of different insects. Invertebrate Physiology encompasses the study of different non-vertebrate organisms, including insects. These synonyms demonstrate the interconnection and complexity within the science of studying insect physiology, and its role in understanding insect behavior and ecology.