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Ecology CC

TermDefinition
Symbiosis Relationship between (different) species in which at least one benefits
Pollution The harmful addition to the environment (by humans)
Competition When 2 or more organisms fight for a resource that is in short supply.
Contest Competition An active physical confrontation between 2 organisms in which only one wins the resource
Predation The act of killing and eating another animal (or organism) for food.
Predator An animal (or organism ) which kills and eats an animal (or organism or prey)
Scramble competition A confrontation which results in each organism getting some of the resource
Abiotic Factor A non- living factor
Biosphere Part(s) of earth that supports life
Biotic Factor Living (organism’s influence on another organism)
Carnivore An animal that feeds on animals only
Climatic Factor Factors relating to long term weather conditions [which affects the distribution of organisms in an ecosystem]
Conservation The wise management of the environment or organisms
Decomposition The decaying of a dead organism
Denitrification The conversion of nitrates into atmospheric nitrogen
Ecology Study of the interaction between organisms themselves and their environment.
Ecosystem Organisms and their (interactions with) environment
Edaphic Factor Factors relating to the soil [which affects the distribution of organisms in a (terrestrial) ecosystem]
Food Web Interconnected food chains
Grazing Food Chain Feeding relationship between organisms in which energy is transferred.
Habitat (Place) where a species (or an organism) lives
Herbivore An animal that feeds on plants only.
Niche The functional role of an organism (in an ecosystem)
Nitrification The process of converting ammonia into nitrites and/or nitrites to nitrates
Nitrogen fixing The conversion of nitrogen into nitrates.
Omnivore An animal that eats both animals and plants.
Parasitism An organism which lives in or on another causing it harm.
Population The numbers of a particular species [in a particular ecosystem]
Prey The animal hunted and killed by its predator
Primary Consumer An organism which feeds on the primary producer.
Producer An organism which makes its own food
Pyramid of Numbers The amount of organisms at each trophic level.
Qualitative survey A survey which indicates if a species is present or not
Quantitative survey A survey which records or estimates the numbers of a species (in a particular ecosystem).
Secondary Consumer An organism which feeds on the primary consumer.
Tertiary Consumer An organism which feeds on the secondary consumer.
Trophic Level The position of an organism in a food chain
Created by: Confey College
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