Mollusks live in most terrestrial, freshwater, and marine habitats.
Interestingly, a squid is also a mollusk.
Squid can live in marine habitats.
What can live in marine habitats?

(1) lizards
(2) horses
(3) elephants
(4) fur seals
(5) a fish
(6) squids
(7) barnacles
(8) animals