You are presented with the question "what animals have regions that do not code for proteins?" and the following answer choices: 
- fur and fat
 - eukaryotes
 - fur seals
 - barnacles
 - sensory neurons
 - chickens
 - bioaerosols
 - mammals

Now knowing that introns are regions that do not code for proteins and introns are found in eukaryotes, choose the best answer.


 

  eukaryotes       