Parasite I think because it is using other plants for nutrients
        
             
        
        
        
C. locating overlapping sequences
 
        
                    
             
        
        
        
Allopatric speciation, the most common form of speciation, occurs when populations of a species become geographically isolated. ... Selection and genetic drift will act differently on these two different genetic backgrounds, creating genetic differences between the two new species.