You are presented with the question "How do beavers move through water quickly?" and the following answer choices: 
- it keeps an organism warm
 - lowered energy cost
 - heat is produced
 - Males and females
 - They have webbed feet
 - running and lifting
 - heat energy
 - prevents the transfer of heat

Now knowing that webbed feet are used for moving faster through water by aquatic animals and beavers are primarily aquatic animals, choose the best answer.


 

     They have webbed feet    