Answer: Individual, population, community, ecosystem, biome, biosphere
Population: A population is the group of individual within the same species, same area and are capable of reproducing with each other.
Community: A community is defined as the group of populations of two or more species within same geographical area at the same time period.
Ecosystem: Ecosystem consists of community along with its biotic and abiotic factors such as air, water, soil.
Biome: A biome may be defined as the large ecological area with similar climatic conditions. it may consists of multiple ecosystems in itself.
Biosphere: A biosphere consists of all living organisms along with all its sphere with which it interact such as lithosphere, hydrosphere etc.