The compact Toyota Corolla has continually been one of the worldâs best-selling cars. This Asian compact sedan hit the American market in 1969, and 2007 models are still being produced. Reliability, fuel economy, as well as its low purchase price give this compact the edge over the competition.
The premise of Darwin's theory of evolution by natural selection is that all life, from mammals to single celled organisms, is related through descent with modification from common ancestral stock. The mechanism he proposed to explain descent with modification was natural selection.he premise of Darwin's theory of evolution by natural selection is that all life, from mammals to single celled organisms, is related through descent with modification from common ancestral stock. The mechanism he proposed to explain descent with modification was natural selection.
Darwin developed the theory of natural selection to explain differences between species, but many of his contemporaries, including Spencer and Darwin's own cousin Francis Galton, used his ideas to promote Social Darwinism and eugenics.hat sounds pretty simple was in fact controversial for Darwin's time (and it still is today in some parts of the Western world). His theory essentially stated that life on earth is the result of billions of years of adaptations to changing environments.