Fig. 8From: Carcinogenesis: alterations in reciprocal interactions of normal functional structure of biologic systemsSchematic representation of phylogenetical splitting of relatively homogeneously distributed characters x and y (green circle and red triangle, respectively) at the bottom and clearly distinguishable functional components X and Y at the top, despite the presence of the initial, becoming rudimentary, counterparts (small red triangle and green circle)Back to article page