Answer:
DNA structure DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).
Explanation:
 
        
             
        
        
        
Answer:
D) It contains compounds and is therefore a substance
Explanation:
A mixture is composed of multiple compounds.
 
        
             
        
        
        
Answer:It will by the growth of them
Explanation:
 
        
             
        
        
        
I think you should put a check mark by 2, 3,
5, and maybe 6.
Hope this helps.