e embryos of different organisms, comparative embryology, similarities can be seen in early stages of embryos that are completely different at maturity. Finally, comparative biochemistry, which is the comparing of biochemical compounds, such as amino acids, can also show similarities in species, reinforcing the idea of evolution (Wright). As curiosity rose throughout much of the world, scientists began to question the existence of organisms and why some are so alike in so many ways and so diverse as well. Several theories have been proposed in the past to account for the diversity and similarity of species. One scientist by the name of Lamarck proposed that changes in species occurred basically as the result of a striving of organisms for improvement. One main point of
             ...