True because, more variation increases the species fitness, the ability to survive and reproduce. Allowing the organism to pass on their beneficial traits (advantageous traits), to their offspring.
        
             
        
        
        
Emotional expression, memory and motivation
        
             
        
        
        
Cell regulation is conducted by special proteins. These special
proteins are enzymes which help in the regulation of bodily function. They hasten
the chemical reaction such as pepsin. Pepsin is a protein that helps in the
digestion of food in the body.
 
        
             
        
        
        
For the answer to the question above, I believe the answer to your question is 
<span>Birth typically occurs 40 weeks after conception. A woman usually gives birth to a child 9 months after the conception. any child that is born under 9 months is premature. </span>