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.
Alkalinity Alkalinity is a chemical measurement of a waterâs ability to neutralize acids. Alkalinity is also a measure of a waterâs buffering capacity or its ability to resist changes in pH upon the addition of acids or bases.