Notice that the predicted percentages and laboratory percentages are not the same. these differences most likely result from .

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

not sure if this is what you'r looking for eubacteria and archaebacteria

answerblank(1) unconditioned stimulusblank(2); unconditioned response