Urine (Definition) 1  Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs.
Photo by James Devaney/Wireimage/Getty Images. Though we like to think of ourselves as living in tolerant modern times, the news that Kate Winslet is having three children with three different fathers has been greeted with a pretty shocking level of judgmental outrage.
According to the source, Kate and William want at least four children to follow in the monarch's footsteps (she has one daughter and three sons, including heir apparent, Prince Charles). They donât mind whether No. 3 is a boy or a girl. They already have one of each, so they just want their next child to be healthy, the insider shares.