The cell membrane is very important to the cell structure. It helps hold everything within the cell and serves as a protective covering as well.
 
        
                    
             
        
        
        
Answer:
An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus on a chromosome. Usually alleles are sequences that code for a gene, but sometimes the term is used to refer to a non-gene sequence. An individual's genotype for that gene is the set of alleles it happens to possess.
 
        
                    
             
        
        
        
In order for natural selection to take place we must have "variety in a population". This variety of traits is what allows natural selection to "pick" the most favorable traits. 
        
             
        
        
        
Answer: The answer for "Which chemical bond most likely stores the most energy?" is C. Double carbon-carbon bond.
Hopefully this helps! :)