You are presented with the question "What requires great amounts of water to use their gills to extract dissolved oxygen?" and the following answer choices: 
- most cephalopods
 - alligators
 - starfish
 - aquatic animals
 - Jellyfish
 - water foul
 - platypus
 - Lobsters

Now knowing that an aquatic animal requires great amounts of water to survive and fish can survive in water by using their gills to extract the dissolved oxygen, choose the best answer.


 

    aquatic animals     