3. Organization of Life Cell Tissue Organ Organ System *Organism can be made of one cell or many organ systems. Smallest unit that can carry out life’s activities Group of cells working together to perform specific job Group of tissues working together to perform specific job Group of organs working together to perform specific job Organism*
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13. Classification of Cells Cells Animal Cells Plant Cells Bacteria Eukaryotic Prokaryotic Other Cells Unicellular Organisms Multicellular Organism Other Cells