Answer:
B) a higher protein to lipid ratio.
Explanation:
The cell membrane of eukaryotes is known to be a phospholipid bilayer with embedded proteins.  This implies that the first tube will contain a higher amount of lipids.
The membrane of the mitochondria is slightly different from the cell membrane in which its protein to lipid ratio is higher, containing a large number of integral proteins. 
 
        
             
        
        
        
C because your traits are what makes up your individuality
        
             
        
        
        
These ions bind to troponin, which forms a complex with tropomyosin. The process is called <span>Excitation-Contraction Coupling 3.</span>
It includes series of events, beginning with the production of an electrical impulse (action potential)<span> and ending with </span>contraction<span> of </span>muscles <span>in the </span>heart.
        
             
        
        
        
the eyebrows are proximal to the jaw