Answer:
They probably won't exist anymore. There would be another form of technology that replaces phones.
 Or you could say in 20 years, phones will probably be able to transform into other stuff like computers etc.
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I think its A. the readers assumptions. or B. the supporting details.  
        
                    
             
        
        
        
Answer:
In humans, the nucleus typically contains 46 chromosomes. Thus, there are 22 pairs of autosomes with approximately the same length, staining pattern, and genes with the same loci. As for , the two X chromosomes are considered as homologous whereas the X and Y chromosomes are not.In humans, the nucleus typically contains 46 chromosomes. Thus, there are 22 pairs of autosomes with approximately the same length, staining pattern, and genes with the same loci. As  the two X chromosomes are considered as homologous whereas the X and Y chromosomes are not.
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In a history book it can be in the review too :)
        
             
        
        
        
It is ment to persuade D. because they are giving you reasons why you should join the navy.