| A | B |
|---|
| ecosphere/biosphere | the global ecosystem. The sub total of all the carious ecosystems on the Earth |
| atmosphere | the layer of air surrounding the earth |
| hydrosphere | the surface water on the earth |
| lithosphere | the solid portion of the Earth's crust |
| photosynthesis | the process by which plants use sunlight to combine carbon dioxide, water, and various minerals into carbohydrates (such as glucose) |
| producers | organisms (such as plants) that synthesize organic substaces from inrogainic substanves |
| species | ? |
| population | all the orgainsims of the same type living in a certain area |
| community | a group of populations living in a given area |
| ecosystem | any rea of nature that includes living organisma and non-living sustanves interacting to produce an exchange of materials between the living (biotic) and non-living (abiotic) parts |
| decomposer | the tiny organisms (such as bacteria, fungi, and some protozoa) that break down the complex compouinds in dead animals and plants |
| niche | all the physical, chemical, and biological factors a species needs to survive, stay healthy, and reproduce in an ecosystem |
| habitat | the specific region in which an organism lives |
