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.
Alkali-Resistant Materials. Alkali-Resistant Materials. materials capable of resisting the action of alkalies. The behavior of a material in alkalies depends on the materialâs chemical composition, structure, and particle size, on the concentration and temperature of the alkali, and on the duration of the action of the alkali.