<span>To defend cardiac output (the amount of blood your heart pumps out per minute), your heart can compensate by beating faster in order to pump out more blood per beat.</span>
        
             
        
        
        
The crystals that form in slowly cooling magma are 'large rocks'. 
I think that is the answer, not 100% sure!
        
             
        
        
        
The reproductive system<span> helps </span>maintain homeostasis<span> in the female body by regulating the vagina Ph. The </span>reproductive system maintains homeostasis<span> in the male by regulating the overall temperature of the testis</span>
        
             
        
        
        
Enzymes are important for allowing and speeding up reactions in an organism. They do this by orienting chemical compounds and or substances so that they can easily break and form new products easily, the activation energy is lowered upon the use of such enzymes.