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.
The lead singer of popular rock band Aerosmith with hits like âDream Onâ and âWalk This Way,â Steven Tyler has also served as a judge on American Idol. Synopsis Born on March 26, 1948, Steven Tyler took up drums and singing before becoming the bombastic, colorful leader of the rock band Aerosmith. The group would enjoy major chart success with hits like âDream On,â âWalk This Way,â âLove in an Elevatorâ and âI Donât Want to Miss a Thing,â having more than three decades worth of staying power.