| Term | Definition |
|---|---|
| cell | the smallest unit of an organism that performs life function |
| 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 nucleus and 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 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 organism by their structure,function and relationship |
| domain | the highest and largest rank of grouping organism Three groups: Archaea,Bacteria,and Eukarya |
| domain bacteria | prokaryotic,single-celled organism that lacks a nucleus in its cell |
| domain archaea | prokaryotic , single – celled organism that lacks a nucleus in its cell and can live in extreme enviroments |
| domain eukarya | organisms with cells that contain a nucleus |
| domain kingdom | a taxonomic rank below domain 6 groups: animalia , fungi , plantae , protista , archaea , and eubacteria |
| autotroph | an organism that is able to make its own food ; known as a producer in the food chain |
| heterotroph | an organism that cannot make its own food ; known as a consumer in the food chain |
| asexual | a method of reproduction that requires only one parent 100% DNA from 1 parent |
| sexual | a method of reprduction that requires both male and female parent 50% from 1 parent 50% from 1 parent |
| cell theory | states that all living organism are made |
