| A | B |
|---|
| Biosphere | the life supporting zone |
| Atmosphere | envelope of gases surrounding the earth |
| Nitrogen | most abundant gas in atmosphere |
| Earth | 3rd planet from sun |
| Cell | basic unit of living things |
| Energy | the ability to make things move or change |
| Metabolism | blanaces the production, consumption and storage of energy in an organism |
| Stimulus | a change in the environment |
| Response | a reaction to a stimulus |
| Reproduction | organisms make more organisms like themselves |
| Adaptation | a characteristic that enables an organism to live and reproduce successfully |
| Energy | the sun is the main source for living things on Earth |
| Needs of living Things (6) | Energy, Food, Water, Temp, Gas Exchange, Living Space, |
| Homeostasis | the ability to keep conditions in body the same despite outside changes |
| Endothermic | internal maintenance of body temp (warm-blooded) |
| Ectothermic | external maintenance of body temp (cold-blooded) |
| Gas Exchange | breathing |
| Living Space | place that provides food and shelter |
| Competition | struggle to get resources for living |
