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romello's cards
vocabulary
| Term | Definition |
|---|---|
| atoms | the smartest part of a cell |
| molecules | made of one or more atoms bonded |
| organelles | composed of molecules,and carry out spefitic functions for each cell |
| cells | smallest functional unit of life.all living orgnanisms are composed of one or more cells |
| tissues | make up the second level of organization.they are formed by joining of the cells that have similar functions. |
| organs | a group of tissues that perform a specific function or group functions |