The body temperature of the Arctic fox remains constant (38.6 ° C) with ambient temperature fluctuations in the range from –80 ° C to + 50 ° C. List the devices that help the Arctic fox to maintain a constant body temperature.
coat, subcutaneous fat, evaporation of water from the surface of the tongue (to cool the body), expansion and narrowing of the lumens of skin vessels – physical thermoregulation. Behavior that helps change environmental temperature conditions is behavioral thermoregulation. Developed regulation of cellular chemical reactions that generate heat, which occurs on command from a special heat center in the diencephalon, is chemical thermoregulation.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.