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Urine is composed of water, urea, and excess mineral salts.
sweat glands
the adrenal gland
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the waste materials are deadcells,excess salts and water
Urine is composed of water, urea, and excess mineral salts.
Salt (sodium chloride) can be contaminated with other salts (intentionally or not).
sweat glands
Kidney
the adrenal gland
sweat glands
35
magnesium, calcium, iron
urea and excess salts
Kidney
Kidney
They are called pores of the skin. or to have an exact word sweat glands - narutogurl aka nivniv :)