B.
The cytoplasm of the cell contains all of the organelles, including the nucleus.
        
             
        
        
        
Answer:
It decreases the amount of energy necessary for the reaction to proceed.
Explanation:
 
        
                    
             
        
        
        
Primates have large brains (relative to body size) compared to other mammals, as well as an increased reliance on visual acuity at the expense of the sense of smell