Most marine invertebrates are osmoconformers.This means that
A)that their body fluids contain the exact same solutes in the same concentration as their cells.
B)the osmolarity of their body fluids is the same as their seawater environment.
C)that their body fluids contain the exact same solutes in the same concentration as their surroundings.
D)the osmolarity of their body fluids is equal to that of the osmoregulators who inhabit the same environments.
E)the osmolarity of their body fluids fluctuates between hypertonic to hypotonic depending on the season and the tides.

Question

Quizplus · Accepted Answer

Osmoconformers are organisms that allow their internal osmolarity to match the osmolarity of their environment, which is why their body fluids have the same osmolarity as the surrounding seawater. Option A is incorrect as the solute concentration may not be exactly the same as the cell's concentration, while option C is incorrect as their surroundings could have a different solute concentration than the body fluids. Option D is also incorrect as osmoregulators actively regulate their internal solute concentrations to be different from their surroundings. Option E is also incorrect as marine invertebrates lack the ability to fluctuate their internal osmolarity based on seasonal or tidal changes.

Most Marine Invertebrates Are Osmoconformers.This Means That