Answer:
A. Blood is pushed through vessels 
Explanation:
Heart muscles contract and relax. The most important effect of this action on the human body is Blood is pushed through vessels. 
Hope it will help :)❤
 
        
                    
             
        
        
        
Answer:
Antibiotics cannot kill viruses because bacteria and viruses have different methods to survive and replicate. Viruses replicate via inserting their DNA into a host cell.
Explanation:
I know things.
 
        
             
        
        
        
Answer:
I think it is D
You can report me if I am wrong
 
        
             
        
        
        
A species could gain negative traits through evolution. So, evolution does not always mean progress.
 
        
             
        
        
        
Considere la fórmula para la glucosa: C6H12O6<span>. </span>¿Qué indica esto acerca de la relación de los reactivos a la glucosa?<span>Doce agua (H2O) moléculas se utilizaron para hacerlo.</span><span>Doce de hidrógeno (H2) Se utilizaron moléculas para hacerlo.</span><span>Seis de oxígeno (O2) Se utilizaron moléculas para hacerlo.</span><span>Seis dióxido de carbono (CO2<span>) Se utilizaron moléculas para hacerlo</span></span>