Every election in the United Sates society reaffirms the principle of "popular sovereignty", since this holds that the people of a community are ultimately responsible for who governs them.
<h2><u><em>The theory of evolution is based on the idea that all species? are related and gradually change over time. Evolution relies on there being genetic variation? in a population which affects the physical characteristics (phenotype) of an organism.</em></u></h2>