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.
But it is incorrect to refer to the Celsius scale as only centigrade scale. The Reaumur scale divides Celsius' upper and lower fixed points into eighty degrees to make division easier and the absolute or Kelvin scale takes absolute zero as its lower fixed point otherwise using the Celsius gradation.