(earth & space)(will vote brainliest) in earth system science, earth is studied as a. an indivisible unit that is part of the solar system b. a system of interacting subsystems c. a set of separate subsystems

Hey,

B.) a system of interacting subsystems

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unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.