| A | B |
|---|
| ecology | the study of living things and their environment and the interaction with one another. |
| commensalism | a relationship in which one organism is helped and one is unaffected. |
| mutualism | a relationship in which both organisms benefit. |
| parasitism | a relationship in which one organism lives in or on another and does harm |
| population | a group of the same type of organism |
| producer | an organism which does photosynthesis |
| consumer | an organism which must take in food for energy |
| community | all of the living things in an area |
| climax community | the final stage of succession |
| succession | the process of gradually replacing one type of organism with another |
| competition | the struggle among living things to get what they need to survive |
| environmental degradation | to lower the quality of your surroundings |
| resource aquisition | to collect the materials you need |
| pollutant | a material which changes the environment by having a negative effect on living things |
| acid rain | rain which becomes acid from industrial emissions and combines to form an acid |
| global warming | increase in carbon dioxide staps the infrored radiation from escaping the Earth |
| ozone depletion | the decrease in the amount of the form of oxygen which protects from ultraviolet radiation |
| fossil fuels | coal and oil |
