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| A cell is a collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of life |
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| Cell theory is the idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells |
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| The nucleus is the center of the atom which contains the protons and neutrons; in cells, structure that contains the cell's genetic material (DNA) and controls the cell's activities |
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Definition
| Eukaryote ia an organism whose cells contain nuclei |
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| Prokaryote is an unicellular organism lacking a nucleus |
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