um...liquid?
The Urethra is the part of the body on males/females where urine is passed.
The nephron is the part of the kidney that produces urine.
filtration must be done in order to to absorb essential nutrients from renal fluid and makes the urine dilute
water
It seems like you might be referring to the ureters, which are muscular tubes that carry urine from the kidneys to the bladder. The ureters are about 8 to 12 inches long and are an essential part of the urinary system.
The urethra is the part of the male reproductive system that serves as the passageway of urine. It carries urine from the bladder to the outside of the body.
gallbladder
Urine exits through the male's penis.
The bladder.
The word essential is an adjective. It means to be necessary.
Urine plays NO part in dog mating.
The urine is part of the excretory system.