The biosphere is the highest level of organization in the hierarchy of life on earth. rank the levels of organization from most complex to simplest. a) ecosystems > communities > populations > organisms b) organisms > populations > communities > ecosystems c) ecosystems > organisms > communities > populations d) populations > communities > ecosystems > organisms cycles connect biological, geological and chemical aspects of organisms in a biosphere. a) ecological b) hydrological c) transpiration d) biogeochemical which example best illustrates the difference between a community and a population? a) the two terms are interchangeable, a population is a community. b) all the people in a town would be a community; all their cattle would be a population. c) all the people in a town would be a community; all the people in a country would be a population. d) all the different animals in a national park would be a community; all of the brown bears in the park would be a population.