<em>igneous rocks</em> that form from magma below the surface.
 
        
                    
             
        
        
        
Explanation:
rotifer is a very small animal that lives in water
so
guessing 
b asexual reproduction
 
        
             
        
        
        
Answer:
 3 can you think of other examples of toxic substances not listed in the gizmo from science 101 at Stephen decatur high
 
        
             
        
        
        
Answer:
By cooling the heart, its need for oxygen is reduced. This allows surgeons to work on the heart for two to four hours without damaging the heart tissue.