Symptoms from a lower urinary tract include pain with urination, frequent urination, and feeling the need to urinate despite having an empty bladder. Symptoms of a kidney infection include fever and flank pain usually in addition to the symptoms of a lower UTI. Rarely the urine may appear bloody.
The primary difference between the centigrade, or Celsius, scale and the absolute, or Kelvin, scale is in their respective starting points. The Celsius scale sets the freezing point of pure water at sea level as 0, while 0 degrees Kelvin is absolute zero, the coldest temperature theoretically possible. Keep Learning.
to answer the 2nd part. the scientific unit for measure of temperature is Kelvin (K), which starts at 0 (also known as absolute zero, or the lowest temperature possible). 1 unit of Kelvin = 1 unit of Celcius. So to convert a temperature from Kelvin to celcius, add 273.6, so 0 degrees celcius would equal 273.6 Kelvin. Now what is important to understand about temperature is that there is only HEAT (unit measured in Joules), there is nothing called COLDNESS etc.. so any temperature above absolute zero means that there is some amount of heat (Joules) present.