Why Kidney couldn't work without the blank because blank couldn't leave the body?

The kidneys couldn't function properly without the ureters because the ureters are responsible for transporting urine from the kidneys to the bladder. Without this connection, waste products and excess fluids would accumulate in the kidneys, leading to potential damage and impaired renal function. Essentially, the removal of urine from the body is crucial for the kidneys to maintain homeostasis and regulate bodily fluids.