| A | B |
| Asexual reproduction | a reproductive process that involves only one parent and produces offspring that is identical to the parent. |
| Autotroph | an organism that provides its own food for energy through the process of photosynthesis. |
| Growth | the process whereby the organism becomes larger. |
| Heterotroph | an organism that must find an external source for food (eats other organisms). |
| Multicellular | an organism that is made up of many cells. |
| Sexual reproduction | a reproductive process that involves two parents and produces offspring that is different from both parents. |
| Unicellular | an organism that is made up of only one cell. |
| Development | the process that occurs in the life of the organism that results in the organism becoming more complex structurally. |
| Kingdom | the highest classification into which living organisms are grouped. |
| Response | an organism’s reaction to a stimulus. |
| Scientific name | a two-part name given for an organism which is made up of its genus and species. |
| Species | organisms of the same type which are able to breed and produce young of the same kind. |
| Stimulus | any change in an organism’s surroundings that will cause the organism to react. |