Answer:
The answer should be C: mostly in the 20th century
Explanation:
 
        
             
        
        
        
We use Chargaff's rule to get the answer.
[A] + [G] = [C]+ [T].   
[A] + [G] + [C] + [T] = 100%
Where is A is Adenine, G is Gaunine, T is Thymine and C is Cytosine.
In DNA, Adenine always pairs with Thymine, and Guanine always pairs with Cytosine.
Therefore if Thymine is 35%, then Adenine will also be 35% to make 70% in total.
The remaining percentage will be 100% - 70% = 30%.
The 30% will be shared equally among Cytosine and Guanine, at 15% each. Therefore Cytosine will be 15% 
        
             
        
        
        
Answer:
Pretty sure it is Bedrock my good fellow.
Explanation:
 
        
                    
             
        
        
        
Answer:
communication is not the function of skeletal system
 
        
                    
             
        
        
        
Answer:
series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate
Explanation:
The citric acid cycle, also known as the Krebs cycle or the tricarboxylic acid cycle, is at the center of cellular metabolism, playing a starring role in both the process of energy production and biosynthesis. It finishes the sugar-breaking job started in glycolysis and fuels the production of ATP in the process.