Plant cells have cell walls and animal cells do not because the plant cell needs it for its activities.
        
                    
             
        
        
        
The most appropriate answer is D !!
        
             
        
        
        
Answer:
A decomposer is found at the end of a food chain. 
 
        
                    
             
        
        
        
Answer:
 Children born to mothers with dark skin, living far from the equator.
Explanation:
I would say this is the answer but I'm not sure. This is just what I think. I asked my mom about it and she said the same thing I did. I hope this helps.
 
        
             
        
        
        
They are like that because they can't always be faulty and may have at least some spark of truth to this theory also as stated earlier a theory in scientific terms is just an observation so it can't really be turned down hence theory.