Mollusks live in most terrestrial, freshwater, and marine habitats.
Biomes are the world's major habitats.
Mollusks live in most terrestrial, freshwater, and marine biomes.
Mollusks live in most terrestrial, freshwater, and marine what?

A. protected
B. houses
C. areas
D. homes
E. fossils
F. alluvial
G. biomes
H. swimming