Answer:
Air temperature 
Explanation:
These variations in air pressure are due to temperature differences caused by variations in solar energy received at the surface of the earth
 
        
             
        
        
        
The answers would be histones; nucleosomes.
Sentence form: In the nucleus, DNA is wrapped around histones to form nucleosomes.
        
             
        
        
        
Answer: Life span, Life expectancy.
Explanation:
 
        
             
        
        
        
Answer:
I'm sure you'll find your answer some time soon 
 
        
                    
             
        
        
        
False, I'd say. Mammals usually adapt based on environment. Now, I know predators are "apart" of the environment, but I don't think that'd be it. I'd bet more money on saying mammals evolve based on environment adaptation. Sorry if I didn't answer your question or if I didn't get my point across well.