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human body week 2
Question | Answer |
---|---|
bones | The organs that make up a skeleton. |
organ systems | A group of organs that work together to perform a certain task (job). |
microscope | A device used by scientists to observe (see) extremely small objects or organisms. |
cell wall | A stiff structure that surrounds and protects a cell. Found in plants |
tissue | A group of cells that work together to carry out a particular task (job) in an organism. |