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.
David 'Jack' Coverdale is an English rock singer most famous for his work with Whitesnake, the commercially successful hard rock band he founded in 1976. Before Whitesnake, Coverdale was the lead singer of Deep Purple from late 1973 to March 15, 1976, when he resigned from the band and established his solo career.Credit: Wikimedia.org David Coverdale first came to the attention of the general public in 1973, when he took over for Ian Gillan as lead singer of Deep Purple. Coverdale was not well received and in fact, many Deep Purple fans saw him as a poor'.