Answer :

i) The structural and functional unit of kidney is nephron. The nephrons are responsible for forming the urine. A nephron is composed of Glomerulus and renal tubules.

ii) Kidney, Ureters, Urinary bladder, Urethra. Urine produced by nephrons in the kidney travel down through the ureters to the urinary bladder. The urinary bladder can expand for storage or collapse when empty. The urine is expelled outside the body through the urethra.

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