In which of the following environments would there be the greatest need for osmoregulation?
A) An animal connective tissue cell bathed in isotonic body fluid.
B) A salmon moving from a river into an ocean.
C) A red blood cell surrounded by plasma.
D) A plant being grown hydroponically in a watery mixture of designated nutrients.

Question

Quizplus · Accepted Answer

The ocean has a higher concentration of salt compared to freshwater and therefore, a salmon moving from a river into an ocean would need to osmoregulate to maintain a balance of water and ions in its body. This process is essential for the survival of the salmon. The other options mentioned do not present as great a need for osmoregulation.

In Which of the Following Environments Would There Be the Greatest