More astonishing than the difference between the length of the lists of Old World's and New World's domesticated animals is the difference between the lengths of the lists of infectious diseases native to the two.
Fetal Hemoglobin Test. Definition. Fetal hemoglobin (Hemoglobin F), Alkali-resistant hemoglobin, HBF (or Hb F), is the major hemoglobin component in the bloodstream of the fetus. After birth, it decreases rapidly until only traces are found in normal children and adults. Purpose.
Acid Mine Drainage: Alkalinity Alkalinity is a measure of the buffering capacity of a solution. Chemical buffering is the resistance of a solution to changes in pH. Because pH is a measure of the number of hydrogen ions in a solution, alkalinity represents the ability of a solution to absorb or take up hydrogen ions.