Answer: . all of the above
Explanation:
Science has benefited the society by contributing to wide areas of scientific fields like their contribution in medical science, invention of alternative sources of energy, and technological advances. 
Medical science: Scientists have conducted many research in order to determine the cause of diseases and their possible diagnostic treatments.
New energy: Scientists have found out energy harnessing technology from renewable resources like water, sunlight and biomass which can meet the energy requirement of human society when conventional resources will not be available.
Technological advances: Scientists have contributed to the development of diversity of machinery which can reduce the human labor. 
 
        
                    
             
        
        
        
A:air
because the flag would on blow if it had some kind of wind
        
                    
             
        
        
        
Mitosis allows organisms to generate genetic diversity.
        
             
        
        
        
Answer: 2^(3^4)
Explanation: do the 3^4 first in the parentheses then do 2^81
 
        
             
        
        
        
No, bigger organisms have more cells.