Answer: A. Regular participation in physical activity reduces the risk of developing various diseases.
The kidneys maintain our body's water balance by controlling the water concentration of blood plasma. The kidneys also control salt levels and the excretion of urea. Water that is not put back into the blood is excreted in our urine.
Plasma proteins, or serum proteins. ☺️
Answer:
Because developed countries usually rich, high levels of production require efficient production in factories
Explanation:
