You are presented with the question "Mollusks live in most terrestrial, freshwater, and marine what?" and the following answer choices: 
- protected
 - houses
 - areas
 - homes
 - fossils
 - alluvial
 - biomes
 - swimming

Now knowing that mollusks live in most terrestrial, freshwater, and marine habitats and biomes are the world's major habitats, choose the best answer.


 

       biomes  