ITS D I THINK PRETTY SURE BUT DO TAKE MY WORD FOR IT.
        
             
        
        
        
Answer:
I wasn't sure what you were asking
Explanation:
The fluid mosaic model explains various observations regarding the structure of functional cell membranes. According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded.
 
        
             
        
        
        
Examples: plant & animal cells, sperm & ovum, bacteria & virus