Typical marine fishes:
a. Tend to gain water by osmosis since their internal salt concentration is higher than that of seawater
b. Tend to lose water by osmosis since their internal salt concentration is lower than that of seawater
c. Do not drink seawater since they need to conserve as much water as possible
d. Produce a large volume of urine since they need to conserve as much water as possible
e. Drink seawater and as a result large amounts of urine