The soluto concentration of the body fluids of a shark is close to that of seawater. The shark achieves this by retaining high kvels of urea in its body What is the benefit of such a mechanism?
A. It prevents the gain of sales from the surrounding sea by osmosis
B. It prevents the gain of water from the surrounding sea by Cross
C. It prevents the loss of water to the surrounding sea by Osmosis
D. it prevents the loss of salts to the surrounding sea by osmosis