The ends of eukaryotic chromosomes are called <span>telomeres.</span>
        
             
        
        
        
Answer:
to continually produce energy,your organs need oxygen and the oxygen  is carried in your red blood cells.
 
        
                    
             
        
        
        
<span>Superworms must be isolated and placed in complete darkness to pupate, all cooling does is kill them</span>
        
                    
             
        
        
        
Answer:
1 all of the above.
2 fire and land slide.
3 forest fire or all of the above.
 
        
             
        
        
        
The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine. This base is also a pyrimidine and is very similar to thymine. Uracil is energetically less expensive to produce than thymine, which may account for its use in RNA.