Urea is the nitrogenous waste product filtered from the blood and excreted in the form of urine.
Salt and water are excreted in the form of sweat through the skin.
Kidneys filter waste from your blood so that it can be excreted.
cyanobacteria
Ammonia, uric acid, and urea.
Ammonia
The main waste excreted by the skin is heat.
Urea is the nitrogenous waste product filtered from the blood and excreted in the form of urine.
the waste products of algae and bacteria
Perspiration is the liquid body waste excreted by the sweat glands in the dermis of the skin.
Salt and water are excreted in the form of sweat through the skin.
Urine
Undigested food waste is excreted through the anus.
The main waste excreted by the skin is heat.
"Poop" or excrement is a natural by-product of eating and drinking. When humans or animals/reptiles/etc. eat and drink, nutrients are extracted to form energy needed to live. All else becomes waste that must be excreted by the body. If waste is not excreted, toxins within the waste would poison and kill the body.
Tom Sigal
egestion