Sugar doesn't dissolve in water naturally making it polar
Yes, urine contains urea nitrogen and uric acid.
hepatic vein
no, it contains whale sperm
filtration
No, urine is used to excrete nitrogen and therefore contains urea (or uric acid for birds) as a major component. Sweat doesn't serve this purpose and contains no urea.
No Urea phosphate: (NH2)2CO + H3PO4 Uric acid : over on the left uric acid contains a urea-structure, but there is no phosphate/phosphoric acid in the structure.
Materials removed from the kidneys are urea and water sugar!
Hepatic Vein
waste urea hydrogen
urea, ammonia, amino acids, and many more
Hepatic Portal Vein