5. which of the following shows the correct sequence of levels from least complex to most complex?
biosphere, biome, ecosystem, community, population, organism
population, organism, ecosystem, community, biome, biosphere
community, population, organism, biome, biosphere, ecosystem
organism, population, community, ecosystem, biome, biosphere

The correct sequence which shows the levels from least complex to most complex is: organism, population, community, ecosystem, biome, biosphere. Organism or an individual is the first level in the organization of the eco system. It is any living thing or organism. It is followed, by population which is a group of individuals of a given species that live in a specific geographic area at a given time.The third level is the community, which includes all the populations in a specific area at a given time. A The fourth level is the ecosystem which includes more than a community of living organisms (biotic) interacting with the environment (abiotic). The fifth levele is a set of ecosystems sharing similar characteristics with their abiotic factors adapted to their environments, referred to as a biome. And the alst level is the biospehere- all differenet biomes.