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science final exam
| Term | Definition |
|---|---|
| volume | the amount of space an object occupies |
| mass | the amount of matter in a object |
| density | the mass per unit volume of a substance |
| water displacement | a method used to find the volume of an irregular object |
| cell | the basic unit of life |
| unicellular | and organism made of one cell |
| multicellular | an organism of many cells |
| specialized cells | cells that perform specific functions |
| cell membrane | controls what enters and what leaves a cell |
| cell wall | provided structure and support to plant cells |
| cytoplasm | the fluid inside a cell where organelles are located |
| nucleus | the control center of the cell |
| mitochondria |