Answer:
DNA is made up of molecules called nucleotides each nucleotides contains a phosphate group a sugar group and nitrogen base
 
        
             
        
        
        
Answer:
 the methyltransferase catalyzes the addition of a methyl group onto the 5' position of cytosine through a complex, multi-step process.
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Answer:it grows the grass then the grass is eaten by the grass hoppers then the grass hoppers are eaten by the mouse then the mouse is eaten by the snake then the snake is eaten by the hawk
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The answer would be C. Manipulating the environment
        
             
        
        
        
The answer to this question is: Public health
People in public health working in a large population. They are not focusing on individual health like physician and clinician that works in a hospital. Most of their activity is to promote health. Some of them is making a nationwide policy about health.