Fitness is a measure of reproduction success (how many offspring an organism leaves in the next generation, relative to others in the group). Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits( traits determined by many genes).
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If this is what you are looking for : SO4 is sulfate's formula. We can say Sulphur and Oxygen is the answer.
Eukaryotes organize are diffrent<span> functions wich specialized membrane-bound compartments called organelles.</span>
<span>they are variables. They are different from one another and must be treated as such, categorized into two different sections. In order to keep the organization and control over the experiment all groups that are not equivalent must be separated accordingly.</span>
