Unscramble Words Levels of organizationOnline version Identify and define the levels of biological organization by Juan Esteban Ruiz Lopez 1 Basic unit of life l e C l 2 Group of the same kind of cells that perform a specific task u T i e s s 3 Collection of tissues taht form a unit specialized to perform a particular function O g a n r 4 Group of organs that work together to perform a vital task s a s O t e r n y g m 5 Alll the organ systems that make up a living being a r i m n s g O