1 For an average 10 x 12 (120 square foot) room, that works out to a materials cost of $240 to $480. 2  8mm Pergo is closer to $2 per square foot; 12mm is on the higher end of the price spectrum. 3  Underlayment prices vary widely. 4  Some cost as little as $.10 per square foot while others run as high as $1 per square foot.
Definition. noun, plural: leukocytes. Any of the blood cells that lack hemoglobin, colourless and with nucleus. Its major function involves the body's immune system, protecting the body against invading microorganisms and foreign particles. Supplement
Leukocytes, or white blood cells, play an important role in the immune system. They are produced in the bone marrow and released into the blood when they become mature. There are several types of leukocytes, with functions ranging from protection against infection by microorganisms to protection against tumors and parasites. Leukocytes also play a major role in inflammation and allergic reactions.