Explanation:
Serotonin is an inhibitory neurotransmitter that  responsible for regulating the bodies mood and behavior in the central nervous system and affect the functions of the entire body. Prozac and Zoloft are antidepressants that help retain more serotonin neurotransmitters in neurons.
Answer:
d) serotonin
 
        
                    
             
        
        
        
Answer:
sports such as running would require energy and oxygen 
Explanation:
 
        
                    
             
        
        
        
A primary oocyte residing in a primordial follicle becomes a secondary oocyte "in the vesicular follicle".
        
                    
             
        
        
        
<span>Natural selection is likely when there are stronger selection pressures. For example, a perpetual selection pressure is the fact that organisms have to compete for food and resources, meaning the best adapted ones survive. However, a stronger selection pressure may cause natural selection to occur more obviously. An example of this is when the number of white peppered moths decreased during industrialization in England due to the soot collecting on the trees. The change in population was very fast and obvious.</span>
        
                    
             
        
        
        
RNA is a copy of DNA that is used to make proteins. We usually compare all eukaryotic cells as a group to all prokaryotic cells.