Fact 1: Flagella help prokaryotes move.

Fact 2: Like flagella, they are composed of protein.

Given the two facts above, answer the question "What can help prokaryotes move?" with the following options: 
- sweating
 - Energy
 - alveoli
 - a cuticle
 - glucose
 - Energy.
 - Light
 - protein


 

        protein 