Which type of fish is more likely to live in an environment that has a lower osmolarity than that of its body fluids?
A) Saltwater fish
B) Brackish water fish (salt- and freshwater combined)
C) Freshwater fish

Question

Quizplus · Accepted Answer

Freshwater fish live in environments with a lower osmolarity than their body fluids. They constantly gain water by osmosis and lose salts through diffusion, which is the opposite of what happens in saltwater fish.

Which Type of Fish Is More Likely to Live in an Environment