You are presented with the question "What of lipids may contain other molecules as well?" and the following answer choices: 
- empty spaces
 - big spaces
 - building blocks
 - small parts
 - solid, liquid, gas
 - Organic compounds
 - layers of fat
 - bioaerosols

Now knowing that lipids may consist of fatty acids alone, or they may contain other molecules as well and fatty acids are the building blocks of lipids, choose the best answer.


 

   building blocks      