The liver and the kidneys, colon.
some were in your body
None. The human body can not produce B12. It has to get it from food.
Your bladder produces about 1.5 litres of urine per day.
in fact each and every cell of our body produces enzymes to be able to perform its functions.
The pancreas is the main digestive enzyme-producing organ in the body.
a organ that produces a hormone which speeds up your body processes
The organ that produces estrogen is the ovary.
The liver produces urea when it metabolises (breaks down) proteins. This is done in hepatocytes (liver cells). Amino acids are first broken down into ammonia, which is highly soluble and toxic in the blood plasma, so ammonia is joined with carbon dioxide to make urea, this is less soluble and less toxic but a build up of urea is toxic in the blood. Urea is then transported in the blood to be filtered out by the kidneys.