All Freshwater Animals Regulate Their Blood Osmotic Pressures at Levels

Question

All freshwater animals regulate their blood osmotic pressures at levels _______ to fresh water.
A) isosmotic
B) hyperosmotic
C) hyposmotic
D) isotonic

Accepted Answer

Freshwater animals regulate their blood osmotic pressures at levels hyperosmotic to fresh water to prevent excessive water influx and maintain ion balance.