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.
Total alkalinity, as determined with a testing kit, is a measurement of the amount of these substances in parts per million within pools and indicates the waterÊ¹s capacity to withstand changes in pH. The alkaline substances act as buffers, inhibiting changes in pH.