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.
Report Abuse. 1  Dream On Singer. Source(s): https://shrinke.im/a9VYR. 2  It's very possible to learn to sing well. You just need to know the right methods. 3  Steven Tyler... cowok insyaf Â· 9 years ago.  areosmith has had only one lead singer since their first album,and it is steven tyler.. if you listen closely towards the end of the song you can tell it is he. toddyoda11 Â· 9 years ago.