You are presented with the quiz "What kind of animal lives in most terrestrial, freshwater and marine habitats?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mollusks live in most terrestrial, freshwater, and marine habitats" and "mollusks in the diorama include snails and clams". 

So, what's the best answer to the question?


 

   snails        