Chapter 1 lesson 1 Science

Question Answer
oxygen a part of the air that is needed by most plants and animals to live
organism a living thing that carries out five basic life functions on its own
cell the smallest unit of living matter- the 'building blocks" of living things
tissue a group of similar cells that work together to do a certain job
organ a group of tissues that work together to do a certain job
organ system a group of organs that work together to do a certain job

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