Dogs regulate their body temperature through panting.
Have you ever wondered why dog pants on hot days? It's because dog tries to maintain homeostasis. Homeostasis is a word that biologists use to describe how a living organism regulates its internal environment to maintain stability. One very important part of homeostasis is body temperature.
Homeostasis is the property of any system especially a living organism, that regulates its internal environment so as to maintain a stable, constant condition. It is the tendency or ability of an organism or a cell to maintain internal equilibrium by adjusting its physiological processes. Body temperature in mammals, for example, is regulated by a sensor that contains the cells within the hypothalamus of the brain, sweating to reduce temperature.
Other homeostatic mechanisms include: those controlling blood glucose levels, blood acidity, and hormone secretions. It was also suggested that percentage fat composition and body weight have similar control systems. These homeostatic mechanisms involve the neural and endocrine systems of mammals.
Organization: Every organism has a definite biological organization. The external appearance of organism is invariably accompanied by an even more complex internal structure. Plants as well as animals are composed of a number of elements. Atoms in the body of an organism are again united into simple and complex molecules, which are further arranged to form different units like cells, tissues, organs.