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this answer has been asked before look it up
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individuals of the same species that live in the same area
 
        
             
        
        
        
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A mutation that cause changes to short stretches of nucleotides. These mutations affect the specific genes that provide instructions for various functional molecules, including protein . changes in these molecules can have impact on any number of an organism's physical characteristics 
 
        
                    
             
        
        
        
This should have been more points but I’m not really good with bones
        
                    
             
        
        
        
The disappearance of the deer indicates A. Intraspecific Competition