The kidneys filter the blood to remove waste products, which they convert into urine. Urine is carried from each kidney, through a tube called a ureter to the bladder, where it is stored. The ureter and blood vessels enter and exit the kidney through the renal hilum.
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od, its true its possible to get protein from other things like protein powder
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because that one sperm cell have the 23 chromosomes to mix with the 23 in the egg.... to fertilize it
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