The cell theory is fundamental to all living things. 
        
             
        
        
        
DNA replication begins when something called Helicase (an enzyme) unwinds the helix structure of the DNA. It does this so that Primase can then come along and set down an RNA primer.
        
                    
             
        
        
        
Um. The drawbacks to the extensive use of solar energy? well all the other statements about it are false so the correct answer would have to be B. Necessary equipment and installation are expensive
hope that helped
 
        
             
        
        
        
Answer:
cold
Explanation:
the ones that flow out from the equator are warm, while the ones that flow towards the equator are cool