| A | B |
|---|
| gradual change in characteristic of species over time | evolution |
| process whereby organism produces more of own kind | reproduction |
| series of changes that organism undergoes during its lifetime | homeostasis |
| living and nonliving factors in organism's surroundings | environment |
| any structure, behavior, or internal process that enables organism to better survive | adaptation |
| organism's tendency to maintain stable internal environment | homeostasis |
| anything that possesses all characteristics of life | organism |
| condition in environment that requires organism to adjust to it | stimulus |
| increase in living matter of an organism | growth |
| sum total of changes that take place in organism | development |
| organism's reaction to stimulus | response |
| group of similar organisms capable of interbreeding and producing fertile offspring | species |
| the study of life | biology |
