You are presented with the question "what consists of fatty acids?" and the following answer choices: 
- mammals
 - bioaerosols
 - h2o
 - battery cells
 - Energy.
 - hydrochloric acid
 - keeping the dog warm
 - cell membranes

Now knowing that lipids may consist of fatty acids alone, or they may contain other molecules as well and lipids Lipids are major components of cell membranes, choose the best answer.


 

        cell membranes 