| A | B |
| ecology | The inter-relationships between organisms and their relationship to their environment. |
| ecosystem | All biotic and abiotic factors and interactions in a limited area. |
| biotic | All the living organisms in an ecosystem. |
| abiotic | All non-living aspects of an ecosystem. |
| radiation | The energy that enters our atmosphere as heat and light. |
| winds | The result of a rotating earth and lg. air masses. |
| timberlines | The demarcation on mountains where trees no longer can grow. |
| cyclic | A moving cycle. |
| water cycle | The result of evaporation and transpiration and precipitation. |
| populations | An interbreeding community of organisms; same species. |
| camouflauge | An organism's ability to blend in to its environment. |
| warning coloration | An organism's coloration that acts as a warning. |
| mimicry | An organism's protective appearance to similar organisms. |
| producers | Organisms that produce their own food via photosynthesis. |
| consumers | Organisms that are dependent upon other organisms for food. |
| productivity | Photosynthetic rate. |
| food chain | Simple nutritional relationships between organisms. |
| ecological pyramids | A three-dimesional model of nutritional relationships of organisms. |
| food web | Complex nutritional relationship between organisms. |
| bulk feeders | An organism that eats either all or major portions of its prey. |
| neutralism | No direct relationships between organisms in a community. |
| competition | Populations that inhibit each others growth. |
| amensalism | One population inhibits another pop. but is not effected itself by the other population. |
| predation | One organism eating another organism. |
| parasitism | When one organism (parasite) benefits from relationship with another organism (host). |
| commensalism | Relationship of organisms where one is helped and the other is neither helped nor hurt. |
| mutualism | relationship where both pop. benefit. |
| biosphere | Upper mountain region extending to the depths at which life exists. |
| habitat | An organism's address. |
| ecological niche | The occupation of an organism. |
| oxygen cycle | Circulation of O2 from plants to air to animals to plants (as CO2). C |
| carbon cycle | From CO2 in atm. to plants to organisms (as glucose) to atm. as CO2. |
| short nitrogen cycle | Cyclic nature of nitrogen as it circulates as bound up nitrogen compounds. |
| long nitrogen cycle | Nitrogen cycle that includes free nitrogen in atm. |
| nitrogen fixation | conversion of free atm. nitrogen to fixed nitrogen in compounds. |
| noncyclic | Energy as it flows through the ecosystem is.... |
| limiting factors | Factors that limit the growth of organisms in ecosystem. |