Answer:   Determined by genetic and environmental factors. 
Explanation:
Are determined by genetic and environmental factors and the interaction of such factors, but not with absolute certainty. This development system model includes both influences of species typical genes and the influences of a species typical rearing environment.   Relatively rapid increase in obesity, the change stems from changes in the environmental context. 
 
        
             
        
        
        
Answer: Y goes to proteins.
Explanation:
Enzymes, which are a form of protein, are used by the cell to accelerate chemical reactions.
 
        
             
        
        
        
PARTHENOGENESIS
The females lay unfertilized eggs that develop into females.
        
             
        
        
        
Lack of antibodies because thats the stuff to fight things away
        
             
        
        
        
The longest day of the year isn't the hottest day of the year because the phenomenon of the hottest weather following the summer solstice by a month or two is called the lag of seasons.