Fact 1: Some viruses have an envelope of phospholipids and proteins.

Fact 2: Phospholipases are the enzymes that degrade phospholipids .

Given the two facts above, answer the question "What might have an envelope of proteins and enzymes?" with the following options: 
- fur seals
 - some viruses
 - Most plants
 - a fish
 - animal transport
 - animals
 - chickens
 - it needs them


 

  some viruses       