| Question | Answer |
| Biotic factor | |
| |
| Omnivore | An animal that eats both animals an plants |
| Trophic level | |
| Secondary consumer | An organism which feels on the primary consumer |
| Content competition | An active physical confrontation between 2 organisms in which only one wins the resource |
| Commensalism | Symbiotic relationship where one organism benefits and the other is not effected |
| Nitrification | The process of converting ammonia into nitrates |
| Community | A number of different species interacting with each other in an ecosystem |
| Grazing food chain | Feeding relationship between organisms in which energy is transferred |
| Ecology | The study of living organisms and the interaction between each other and their abiotic environment |
| Nitrogen fixing | The conversion of nitrogen into nitrates |
| Pollution | The harmful human addition to the environment by humans |
| Habitat | Place where a species lives |
| Predator | An animal or organism which kills and eats an animal /prey |
| Predation | The catching and killing and eating of prey by its predator for food |
| Edaphic factor | Factor relating to the soil |
| Carnivore | An animal that feeds on animals only |
| Pollutant | The position of an organism in a food chain |
| Pollutant | A substance that causes harm to the environment |
| Abiotic | A non living factor that influences a community |
| Symbiosis | A living factors influence on animals only |
| Pyramid of numbers | The aprox amount of organisms at each trophic level in a food chain |
| Climatic factors | Factors relating to long term weather conditions, which effects the distribution of organisms in an ecosystem |
| Endoparasite | Parasite that feeds inside the host |
| Ectoparasite | Parasite that feeds on the outside of the host |
| Predation | The act of killing and eating another animal/organism for food |
| Prey | The animals hunted and killed by its predator |
| Qualitative | |
| Herbivore | An animal that feeds on plants only |
| Parasitism | An organism which lives in or on another organism , causing harm to it |
| Producer | An organism which makes its own food |
| Primary consumer | An organism which feeds on the primary producer |
| Nutrient recycling | The way elements are exchanged between living and non living components of the ecosystem |
| Biosphere | Part of earth that supports life |
| Conservation | A survey which records or estimates the numbers of a species in a particular ecosystem |
| Competition | Struggle between organisms for the same limited resources |
| Tertiary consumer | An organism which feeds on the secondary consumer |
| Predator | An animal that hunts and kills for food |
| Population | A group of individuals of the same species |
| Decomposition | The decaying of a dead organism |
| Scramble confrontation | A confrontation in which results in each organism getting some of the resource |
| Niche | The functional role of an organism in an ecosystem |
| Denitrifying | The conversion of nitrates into atmospheric nitrogen |
| Waste management | Collecting , processing and disposal of waste produced by humans |
| Parasitism | The protection and wise management of the environment or organisms |
| Mutualism | Symbiotic relationship where both organism benefit |
| Food web | Interconnected food chains |
