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9 Cards in this Set
- Front
- Back
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microscope
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tool that magnifies tiny things
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cell
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the smallest living part of any living thing
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nucleus
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the control center of a cell
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cytoplasm
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fluid that surrounds the nucleus
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cell membrane
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the soft, thin covering of each cell
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cell wall
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a layer on the outside of the cell membrane
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tissue
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a group of cells all doing the same kind of work
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organ
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a group of tissues working together
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system
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a group of organs working together
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