tetrapods, many containing similar muscles but not necessarily originating from the same ancestor. These two anatomical likenesses cannot be explained without considerable understanding of the theory of organic evolution14.The embryology, or early development of species evolved from the same ancestor would also be expected to be congruent. Related species all share embryonic features. This has helped in determining reasons why development takes place indirectly, structures appearing in embryonic stage serve no purpose, and why they are absent in adults. All vertebrates develop a notchord, gill slits (greatly modified during the embryonic cycle) and a tail during early embryology, subsequently passing through stages in which they resemble larval amphioxus, then larval fishes. The notchord will only be retained as discs, while only the ear canal will remain of the gills in adults. Toothless Baleen whales will temporarily develop teeth and hair during early embryology leading to the conclusion that their ancestors had these anatomical intricacies. A similar pattern, exists in almost all animal organisms during the embryonic stage for numerous formations of common organs including the lungs and live!r. Yet there is a virtual ly unlimited variation of anatomical properties among adult organisms. This variation can only be attributed to evolutionary theory15.Biological evolution theory insists that in the case of a common ancestor, all species should be similar on a molecular level. Despite the tremendous diversity in structure, behaviour and physiology of organisms, there is among them a considerable amount of molecular consistency. Many statements have already been made to ascertain this: All cells are comprised of the same elemental organic compounds, namely proteins, lipid and carbohydrates. All organic reactions involve the action of enzymes. Proteins are synthesized in all cells from 20 known amino acids. In all cells, carbohydrate mole...
