| A | B |
| Biology | Study of Life |
| organism | Anything that possesses all of the characteristics of Life |
| organization | an orderly structure |
| reproduction | the production of offspring |
| species | a group of organisms that can interbreed |
| growth | an increase in the amount of living material |
| environment | Living(biotic) and nonliving (abiotic) surroundings to which an organism must constantly adjust |
| stimulus | anything in an organism's internal or external environment that causes the organism to react |
| response | an organism's reaction to a change in its internal or external environment |
| homeostasis | maintaining conditions suitable for survival |
| energy | the ability to cause change |
| adaptation | evolution of a structure, behavior, or internal process that enables an organism to respond to environmental factors |
| evolution | gradual change in a species through adaptations over time |
| bio | life |
| hetero | different |
| homeo | same |
| derm | skin |
| logy | study of |
| scope | look |
| stasis | remain constant |
| therm | heat |