Answer:
hmmmm MARK ME BRAINLIST
Explanation I think Characteristics of ATP. Adenosine triphosphate (ATP) is an essential aspect to life, as it is the basic source of energy for all known living cells. ATP serves a dual function: it is individually a source of energy, as well as being involved in processes that release more energy when it is broken down to form adenosine diphosphate (ADP).
 
        
             
        
        
        
Answer:
B. Use the polymerase chain reaction (PCR) to make multiple copies of the DNA.
Explanation:
The scientist is to analyze a small sample of DNA, the most useful step to start this would be first the use of polymerase chain reaction to make various copies of that DNA sample. PCR is essential and quick process that gives a lot of copies within few hours. It uses the sample or target DNA, according to which the primers are designed. Taq polymerase and DNA polymerase are also used in the process, it consist of various cycles in which copies are made. There are three basic steps 'Denaturation', 'annealing', and 'extension'. 
 
        
             
        
        
        
I can say for certain that it's really probably not A. or D.
As for B. or C., I'd say C. 
        
                    
             
        
        
        
Answer:they can eat a high carb meal before exercising
Explanation:i know because i'm diabetic
 
        
                    
             
        
        
        
Answer: to provide nutrition, transport pathways for water and support plant’s body