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| Red beetles- Photo by : Vidura Nishantha |
Cell is regarded as the basic structural and functional unit of life. The tissues are made up of similar cells. Differentiated smaller units arranged in an orderly manner to form larger units is called organization. There are different levels of organizations.
lower levels include:
molecules ----> organelles ---->cells ---->tissues ----> organs ----> organ systems ----> organism
higher levels include:
organisms ---->population ----> community ---->ecosystem ---->biosphere
