Some viruses have an envelope of phospholipids and proteins, and phospholipids are body fats, too. Given these facts, some viruses have an envelope of among the following options:
- fats and proteins
 - allow growth
 - aerobic capacity
 - keeps the organism warm
 - wavelengths and photons
 - Chemical energy
 - looseness
 - To keep their body heat.


 

 fats and proteins        