The physiology is a branch of the animal physiology, which is responsible for studying the biological functioning of various animal species. These analyzes can be performed at the organ level or at the cellular level. In this way, after the physiological study has been carried out, the person will be able to have a greater understanding about the behavior of an organ or tissue and in general understand the reason for the animal behavior.
The word physiology comes from the Greek "physis" which means nature and "logos" which means "study", so physiology is the study of nature specifically the functioning of living beings, in this case how animals function.
Animal physiologists analyze the structure and function of the various parts of an animal and how those parts, being different, work together to enable animals to improve their normal behavior and respond to their environment.
One of the most common factors within animal physiology is diversity. Millions of different animal species coexist on earth, and each one of them has adopted unique and innumerable characteristics through evolution. Every physiological process is the result of the difficult genetic regulation tissue activities of countless cells.
Despite this great diversity, many common points can be found within physiology, which unite themes adaptable to all physiological processes, some of them are: they obey physical and chemical laws. They are regulated to keep internal conditions within reasonable limits. The physiological state of an animal is part of its phenotype, which is caused by the genetic product or genotype and its interaction with the environment. The genotype is the result of evolutionary change in a set of organisms, populations or species, in the course of many generations.
These studies mostly investigate the effect of different processes on the physiological phenotype of an animal. Both the genotype of an organism and its environment interact during its development to create the phenotype of an adult organism. The phenotype represents the result of processes at many levels of the biological structure (cellular, organ, biochemical, tissue), all these processes together interact to form behaviors, complexes and physiological responses. In the same way, the environment plays an important role since it can influence the adult phenotype.
An animal's physiology can play a role in its reproductive success. The various types of life that different phenotypes lead can lead to an evolutionary change in the physiology of a population over the course of many generations.
