Alleles are two different forms of a single gene.
        
                    
             
        
        
        
They no longer will be able to produce adequate amounts of ATP.
        
             
        
        
        
Answer: Thanks for the tips.
Explanation:
 
        
             
        
        
        
Answer: The theory of evolution supports fossils
Explanation:
By looking at fossils it shows how that species evolved
 
        
             
        
        
        
Answer:
there are changes in the climate which result in the enviorment changing
i think that the first picture (the one with snow) happened first because it shows the most "natural" of them all, with snow in the beguning and melted into picture number 2 (the gray pic). it shows climate changing resulting in the mountain snow to melt faster and developing into something similar but different.
hope this helps:)