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Vaocabulary Unit 1, Lesson 2

unicellular One-celled organisms that can carry out all the processes of life
organism An individual living thing
multicellular Organisms that are made of many different kinds of cells
tissue A group of similar cells that do the same job in an organism
organ Made up of tissues of different kinds that come together to do a particular job
organ system A group of organs that work together to do a certain job
Created by: Keith@Olv