Answer:
D. helps maintain membrane fluidity 
Explanation:
 
        
             
        
        
        
Answer:
people usually put high schools for some reason
Explanation:
like how you're in 7th grade, but listed "in college".
or its just the system doing that
 
        
                    
             
        
        
        
Helps build two main Characteristics out of two choices to classify and unidentified organism