magnesium, calcium, iron
In the large intestine,water and mineral salts are absorbed into the bloodstream.
The large intestine is lined with a think muccous membrane to absorb and/or eliminate water and salts.
Kidney
you mom and your dad
The intestines, small and large. The skin is the largest organ but its function is not predominantly excretory.
Dialysis
Urine is composed of water, urea, and excess mineral salts. Urea is a waste product produced by the liver when it breaks down proteins, and excess mineral salts like sodium, potassium, and chloride are filtered out of the blood by the kidneys and excreted in urine.
Kidneys and intestines
sweat glands
Water and salts are taken from foods and drinkable water.
Kidney
sweat glands