(Choice A) A community A contains more resources per individual then Community B
        
             
        
        
        
4 billion years ago the temperature was much higher due to repeated volcanoes and hot gases present in the atmosphere. There weren't any live forms on earth. ... The atmosphere had a different concentration of gases on the earth. There were no life sustaining gases.
        
             
        
        
        
I believe its A. I may be wrong.
        
             
        
        
        
Answer:
because it is also created from the father not only one of them
 
        
                    
             
        
        
        
Answer: <u><em> Microevolution is defined as a change in allele frequencies in a population over time. Three mechanisms can cause allele frequencies to change: natural selection, genetic drift (chance events that alter allele frequencies), and gene flow (the transfer of alleles between populations).</em></u>
Explanation:<u><em> If i'm right Mark Me brain, give 5 stars and a thank you</em></u>
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