Answer:
advantages are of genetically modified plants are the desired traits it results in but also they well-grown fruits and vegitables will be plump, ripe and delicious. 
Explanation:
 
        
             
        
        
        
Answer:
The characteristic features of the phylum Chordata are a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a tailgut.
Hope this helps
 
        
                    
             
        
        
        
From my speculation it is loss of habitat and global warming
        
                    
             
        
        
        
Answer:
because not every virus or disease has the same DNA or RNA