Mollusks live in most terrestrial, freshwater, and marine habitats, and clams, oysters and snails are familiar mollusks. Given these facts, what lives in most terrestrial, freshwater, and marine habitats among the following options:
- fungi
 - homogenous
 - oysters
 - a fish
 - animals
 - bacteria
 - ducks
 - barnacles


 

   oysters      