<span>Most of the nitrogen gas in Earth's atmosphere comes from _____.
</span>
<span>
D.	the breakdown of carbon dioxide</span>
        
                    
             
        
        
        
Answer: Dermatology
Like you said, derma means skin and  having the terminology -logy <span>indicates </span><span>names of scientific fields of study. Basically, dermatology is the branch of medicine that studies skin but also studies </span>scalp, hair, and nails (because they are all associated).
<span />
        
                    
             
        
        
        
Answer:
Rabbits are adapted to a certain type of environment and conditions, not certainly winter. So this effect the survival rate of the rabbits. 
Moreover, their diet intake may be affected, for example, they are herbivores, so the plants they consume might not be present in this harsh season.
Then, competition with other animals increases as well, so the rabbits might have more predators.
 
        
             
        
        
        
<span>The closet hominin to a current day human is: </span>Homo Sapiens.