The theory of evolution is supported by biochemical evidence; many of the same molecules and biochemical processes occur within all living organisms, from single-cell bacteria to humans. Originally, scientists couldn't u... More » Science Biology

Fossils are important evidence of evolution because they clearly show the incremental development of modern species from long-extinct primitive organisms. Many modern species, such as the horse, have a clear fossil recor... More » Pets & Animals Dinosaurs

Closely related organisms often share similar structures in their bodies, despite their different lifestyles. The simplest explanation for such similarities is that both species descended from a common ancestor with simi... More » Science Biology
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Lamarck's theory on evolution was wrong because organisms pass down traits through predetermined genetic information, not based on environmental adaptations during their lifetime. Lamarck proposed that if an organism use... More » Science Biology

Vestigial structures support the theory of evolution by adding observable evidence to the model of common ancestry. Vestigial structures are not necessarily without function. In fact, according to Austin Cline at About.c... More » Science Biology

Biochemical tests are the quickest and easiest tests for identifying bacteria because they use deductive principles to reduce the number of possible species present very quickly. Additionally, because bacteria are microo... More » Science Biology

Jean Baptiste Pierre Antoine de Monet, Chevalier de Lamarck, was one of the first naturalists to propose a comprehensive theory of evolution. His proposed mechanisms were different from those of Charles Darwin and Alfred... More » Science Biology