In which of the following is the order of organs correct?
(a) kidney, urethra, urinary bladder, ureter
(b) kidney, ureter, urinary bladder, urethra
(c) ureter, kidney, urethra, urinary bladder
(d) urethra, urinary bladder, ureter, kidney
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Solution
(b) kidney, ureter, urinary bladder, urethra
Kidneys are the main excretory organs in the human body. Ureters carry urine from the kidneys to the urinary bladder, where it is stored. Urine is then excreted from the urethra.