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.
From Wikipedia, the free encyclopedia. Ozzy Osbourne (born John Michael Osbourne, December 3, 1948 in Aston, Birmingham, England) was the lead singer of the pioneering heavy metal band Black Sabbath, popular solo artist, and reality television star.