Answer:a compound present in the body as a neurotransmitter and a precursor of other substances including epinephrine
Explanation:
 
        
                    
             
        
        
        
The species that has the same predators as species c would benefit the most
        
             
        
        
        
Answer:
A. Fuel. 
Explanation: 
Coal is extensively used as a fuel in many countries for the production of electricity. When coal is heated, the heat energy is used to convert the liquid water into steam which is used to move turbines in the electric power plant. When these turbines moves, the electricity is produced. This fossil fuel is also used for warming of rooms and cooking delicious foods. 
 
        
             
        
        
        
En resumen, para que se defina y aborde de manera operativa, el "gen mendeliano" requiere una diferencia de fenotipo asociada con una diferencia de genotipo, mientras que el "gen molecular" requiere transcripción.Answer:
Explanation:
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