Filtration. The process whereby some substances, but not all, pass through a filter. In a kidney, blood pressure forces materials through the filter(glomerulus) Blood passes thru the many glomeruli and the thin walls of the glomerulus (the filter) permits water, salts, sugar and urea to leave the blood stream.
Confidence votes 319K. The lead singer of the ban Evanescence is Amy Lee. Amy Lee has been the front woman of the band since the beginning and has helped lead the band to great success.
John Bush (born August 24, 1963) is an American metal vocalist, currently the lead singer and lyricist of Armored Saint, a traditional heavy metal band from Los Angeles, California and formerly of thrash metal band Anthrax.