| A | B |
|---|
| unicellular | an organism made of only one cell. |
| multicellular | an organism made of two or more cells |
| eukaryote | an organism that has a nucleus in its cell(s) |
| prokaryote | an organism that does not have a nucleus in its cell. |
| autotroph | an organism that uses the sun's energy to make its food |
| heterotroph | an organism that eats other organisms |
| stimulus | something that causes an organism to react |
| response | the reaction an organism gives because of a stimulus |
| organism | a living thing |
| cell | the basic unit of structure and function in an organism |
| development | the process of change that occurs during an organism's life to produce a more complex organism |
| reproduce | the ability to produce offspring similar to the parents |
| spontaneous generation | the mistaken idea that living things come from nonliving sources |
| homeostasis | being able to maintain stable internal conditions (Ex. keeping body temperature normal) |
