They serve the body as a natural filter of the blood, and remove wastes which are diverted to the urinary bladder. In producing urine, the kidneys excrete wastes such as urea and ammonium, and they are also responsible for the reabsorption of water, glucose, and amino acids. The kidneys also produce hormones including calcitriol, erythropoietin, and the enzyme renin.
How much does a ticket cost in CA for talking on the cell phone? The issueing officer told me it would be about $20, but when the bill came home it was   a whopping $132.
What is the average phone bill for an iPhone? I pay $40 a month for 450 anytime minutes/unlimited nights and  weekends; then $30 a month for the unlimited internet, then another  $15 for 5000 next messages.This comes t â¦ o a base of $85 and after  tyaxes and everything it is usually $97. phone bill is dependent on many thing. The company in which a  person signs a contract, or if they go with an as you go plan. A  phone bill can cost anywhere from $30 a â¦ month to a couple hundred a  month. 1 person found this useful.