Answer:
I think the answer would be A
 
        
                    
             
        
        
        
Answer: enzymes (B)
Explanation: just took the quiz on usa test prep!
 
        
             
        
        
        
Answer:
The greenhouse effect is a natural phenomenon that causes the surface of the Earth to steam. When sunlight strikes the Earth's atmosphere, part of it is reflected back to space, while the remainder is absorbed and re-radiated by greenhouse gases.
Explanation:
Hope this helps!
Please mark me as Brainlinieast. 
 
        
             
        
        
        
Answer:
They don't have DNA common. In prokaryotic cells there is a single piece of DNA whereas in eukaryotic there are multiple chromosomes.
 
        
                    
             
        
        
        
Fluids play an important role in maintaining homeostasis<span> within the body's systems.
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