title: Physical principles of energy exchange.
mesh_terms: D000818:Animals; D001833:Body Temperature Regulation; D002417:Cattle / Q000378:metabolism*; D004735:Energy Transfer; D004781:Environmental Exposure; D006358:Hot Temperature; D008297:Male; D008433:Mathematics; D008962:Models, Theoretical; D011827:Radiation; D013696:Temperature; D014887:Weather