It's important because it helps you measure things. The prefixes are telling you the distance or meters, etc.
        
                    
             
        
        
        
B. Positive feedback, it decreases body temperature.
        
             
        
        
        
Answer:
is always a higher organism
Explanation:
lets take an example:
food chain consisting of zooplankton, small fish, big fish and man
as the order goes in the question ,the organism at the end of this food chain is man
 
        
             
        
        
        
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. 
 
        
             
        
        
        
TRUE,hope this helped :))