The answer would be D. variation
        
                    
             
        
        
        
A dwarf is a recessive trait. In order for the plant to be shorter, it would have to have 2 recessive alleles. The plant is also purebread so it wont contain the tall allele. The gametes that are possible are tt.
        
             
        
        
        
Human,increase population and Overharvesting
 
        
             
        
        
        
Overlapping niches lead to competition because they need the same resources such as food sources
        
             
        
        
        
 Answer:
DNA is functional is the transmission of genetic information. It forms as a media for long-term storage. RNA is functional is the transmission of the genetic code that is necessary for the protein creation from the nucleus to the ribosome. The DNA is a double-stranded molecule that has a long chain of nucleotides.