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| in biology, the smallest unit that can perform a life process and the basic structure of living things |
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| a phospholid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's enviroment |
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| one of the smallest bodies in a cell's cyctoplasm that are specialized to do a specific job or function |
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| in a eukaryotic cell, a membrane-bound organelle that contains the cell's DNA and that has a role in the process such as growth, metabolism, and reproduction |
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| an organism that consists of a single cell that does not have a nucleus |
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| an organism made up of cells that have a nucleus enclosed by a membrane |
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