Simply put, a genetic mutation comes from a change in the DNA; this change can result from an extrachromosomal element, an alteration of the inherited nucleotide...
The basic building block of nucleic acids, such as DNA and RNA. It is an organic compound made up of nitrogenous, a sugar, and a phosphate group (http://www.biology-online.org/dictionary/Nucleotide)
        
             
        
        
        
Answer:
The Core?
Explanation:
You would think that heat would come from the core but I'm not sure
 
        
             
        
        
        
Answer:
is always a higher organism
Explanation:
lets take an example:
food chain consisting of zooplankton, small fish, big fish and man
as the order goes in the question ,the organism at the end of this food chain is man
 
        
             
        
        
        
TRNA and mRNA i would say
        
                    
             
        
        
        
One option for reducing air pollution is to cut back on major producer factories.