You are presented with the question "Organisms that live in marine biomes must be adapted to what?" and the following answer choices: 
- Deposition
 - fish
 - waves
 - darkness
 - salinity
 - heat or cold
 - evaporation
 - Deposition.

Now knowing that organisms that live in marine biomes must be adapted to the salt in the water and salinity is the measure of salts in the water, choose the best answer.


 

     salinity    