Dialysis performs the function of the kidneys if they've failed.
        
                    
             
        
        
        
Humans are warm blooded and can't be cold blooded because of the environment we live in. We can't sit still during the winter and soak up warmth from the sun.
 
        
             
        
        
        
Bone found at the lower-back area of the cranium
        
             
        
        
        
Answer:
Epinephrine binds to receptors on some smooth muscles (ex: around arterioles) → Ca++ released from ER → intracellular Ca++ up → stimulates contraction. c. Epinephrine binds to receptors on some smooth muscles (ex: around bronchioles) → phosphorylates protein needed for response to Ca++, preventing response.
 
        
             
        
        
        
Which cell structure most resembles the human nervous System?
B. Endomembrane system