| A | B |
| organization | orderly structure |
| organism | possesses chacteristics of life |
| reproduction | production of an offspring |
| growth | an increase in the amount of living material and formation of new structures |
| development | all changes that take place during the life of an organism |
| evolution | the gradual change in the characteristics of a species over time |
| energy | the ability to do work and make things move |
| homeostasis | the regulation of an organism's internal enviroment to maintain conditions suitable for life |
| adaptation | any structure, behaivor, or internal process that enables an organism to respond to stimuli and better survive in an enviroment |
| biology | the study of life |
| species | population of interbreeding organisms capable of producing fertile offspring |
| enviroment | external conditions such as weather or internal conditons |
| stimulus | any adjustment, requiring condition of an organism's enviroment |
| responce | reaction to an internal or external stimulus |