What are the similarities and differences between a biosphere and a community?

In ecology, a community refers to a grouping of species living collectively and interactively with the environment in a specified area, while the term biosphere refers to the total extent of all of the ecological systems on Earth. The natural communities in an ecosystem can change in a process referred to as succession, which can encompass lengths of time ranging between a few years and centuries. In the biosphere, the totality of living organisms on Earth have been interacting with each other and the elements of the hydrosphere, lithosphere and atmosphere for what is believed to be a span of about 3.5 billion years

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