Fact 1: Introns are regions that do not code for proteins.

Fact 2: Prokaryotes lack introns, whereas eukaryotes contain introns.

Given the two facts above, answer the question "Prokaryotes lack regions that do not code for proteins, while this type of living being has them:" with the following options: 
- bioaerosols
 - layers of fat
 - orchids
 - animals
 - critical organs
 - sensory neurons
 - eukaryotes
 - it needs them


 

       eukaryotes  