Answer:
 The answer mah fellow is 
C),Genus and species (Took the test)
 
        
                    
             
        
        
        
Allergies (3) because they are the only disorder listed that is a result of the environment. 
        
             
        
        
        
Answer:
Telomerase is the enzyme responsible for maintenance of the length of telomeres by addition of guanine-rich repetitive sequences. Telomerase activity is exhibited in gametes and stem and tumor cells. In human somatic cells proliferation potential is strictly limited and senescence follows approximately 50-70 cell divisions.
 
        
             
        
        
        
Aerobic respiration produces 38 ATP, while anaerobic respiration only produces 2 ATP. I hope that answered your question, my friend. :)