You are presented with the question "What must be adapted to salt water?" and the following answer choices: 
- animals
 - mammals
 - ducks
 - lizards
 - bacteria
 - humans
 - fur seals
 - whales

Now knowing that organisms that live in marine biomes must be adapted to the salt in the water and tiny marine organisms are thus captured by the baleen, and then swallowed by the whale, choose the best answer.


 

        whales 