| A | B |
|---|
| microscope | An instrument used to magnify small objects |
| cell | The basic unit of all living things |
| organism | A living thing |
| multicellular | An organism made up of many cells |
| unicellular | An organism made up of one cell |
| sexual | Reproduction that involves two parent organisms |
| asexual | Reproduction that involves one parent organism |
| cell theory | All living things are made up one or more cells. The cell is the basic unit of all living things. All cells come from cells. |
| tissue | A collection of cells that work together to perform a specialized job |
| organ | Made up of different types of tissues that work together |
| system | A group of organs that work together to perform a specific job |
| prokaryotic | A single-celled organism that does not have a nucleus or membrane-bound organelles |
| eukaryotic | An organism made up of cells that that have a nucleus |
| organelles | Small parts of a cell found in the cytoplasm |
| microorganisms | An organism that is very small, usually too small to see without a microscope |
