Apopulation of lizards were living in an area that began to experience a great amount of mountain building. as the mountains formed some lizards were on one side of the mountains and the rest were on the other side of the mountains. over a period of many years the lizards were no longer able to breed, or had become different species. why did this happen? a) the lizards on one side of the mountain were exposed to different conditions and therefore different characteristics were selected. b) the lizards on one side of the mountain were exposed to different conditions and therefore the same characteristics were selected. c) the lizards on one side of the mountain were exposed to identical conditions and therefore different characteristics were selected. d) the lizards on one side of the mountain were exposed to identical conditions and therefore the same characteristics were selected.