Answers.comÂ® is making the world better one answer at a time. Arachnophobia, the abnormal fear of spiders derives from the Greek words arakhne, meaning spider and phobos meaning fear.
Hemoglobin (/ËhiËmÉËÉ¡loÊbáµ»n, ËhÉ-, -moÊ-/); also spelled haemoglobin and abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.
Hemoglobin is a molecule comprised of four subunits. Each subunit contains an iron containing pigment (heme) and a protein (globulin). There are two types of subunits, alpha and beta. Each gram of hemoglobin can carry 1.34 ml of oxygen.The oxygen carrying ability of blood is directly proportional to its hemoglobin concentration.emoglobin also serves as an important pH buffer in the extracellular fluid. 1  Normal hemoglobin values are: 2  Adult: (males): 13.5 - 17 g/dl. ( 3 Females): 12 - 15 g/dl. 4  Pregnancy: 11 - 12 g/dl. 5  Newborn: 14-24 g/dl 77% of this value is fetal hemoglobin, which drops to approximately 23% of the total at 4 months of age.