| Term | Definition |
|---|---|
| cell | the smallest unit of an organism that performs life functions |
| nucleus | a structure found in eukaryotic cells that contain DNA and is responsible for controlling the activities of the cell |
| Eukaryotic | a cell containing a membrane-enclosed organelles |
| Prokaryotic | a cell lacking a nucleus or any other membrane-enclosed organelles |
| unicellular | an organism made up of one single cell |
| multicellular | an organism made up of more than one cell,and often made up of different types of cells |
| classification | the process of grouping things based on similarities |
| taxonomy | the branch of science that formally names and classifies organisms by thier structure, function and relationship |
| domain | the highest and the largest rank of grouping organisms three groups: archaea, bacteria, and eukarya |
| bacteria | prokaryotic, single-celled organism that lacks a nucleus in its cell |
| archaea | prokaryotic, single-celled organism that lacks a nucleus in its cell and can live in extreme environments |
| eukarya | organisms with cells that contain a nucleus |
| kingdom | a taxonomic rank below domain |
| autotroph | an organism that is able to make its own food; known as a producer in food chain |
| heterotroph | an organism that CANNOT make its own food; known as a consumer in the food chain |
| asexual reproduction | a method of reproduction that requires only one parent |
| sexual reproduction | |
| cell theory | |
| archeabacteria | |
| eubacteria | |
| protista | |
| fungi | |
| plantae | |
| animilia |
