Fact 1: Mollusks live in most terrestrial, freshwater, and marine habitats.

Fact 2: Biomes are the world's major habitats.

Given the two facts above, answer the question "Mollusks live in most terrestrial, freshwater, and marine what?" with the following options: 
- protected
 - houses
 - areas
 - homes
 - fossils
 - alluvial
 - biomes
 - swimming


 

       biomes  