Excretion system
Kidney is a tool for filtering the blood so that sisasisa substances
metabolism that are toxic and can be useless
expelled from the body through urine.
These substances must be removed because it can damage the health. In addition, kidneys also play a role maintaining water balance in the body or
maintain the osmotic pressure of body fluids so that its role is
important in maintaining body condition in order to stay balanced and
dynamic (homeostasis) or the creation of healthy conditions. pee
looks foamy, yellow and smelly, the result
fluid filtration of blood by the kidneys.