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Ecology

TermDefinition
Ecology The study of how living things interact with each other and their environment
Symbiosis A close relationship between two species that benefits at least one of the species.
mutualism A relationship between two species in which both species benefit
commensalism A relationship between two organisms in which one organism benefits and the other is unaffected
parasitism A relationship between two organisms of different species where one benefits and the other is harmed
producer An organism that can make its own food.
primary consumer An organism that eats producers
secondary Consumer An organism that eats primary consumers
tertiary consumer An organism that eats secondary consumers
decomposer An organism that breaks down wastes and dead organisms and returns nutrients to environment
biotic factors living parts of an ecosystem
abiotic factors non-living parts of an ecosystem
limiting factors An environmental factor that prevents a population from increasing
carrying capacity Largest number of individuals of a population that a environment can support over time
example of mutualism Tick bird and Rhinoceros - bird gets food (ticks) and rhino loses ticks
example of commensalism Remora and shark - remora gets food shark discards
example of parasitism Tick and a dog: the tick gets food and the dog gets an allergic reaction to the tick
biodiversity the variety of life in the world or in a particular habitat or ecosystem.
energy pyramid (10% rule) only 10% flows from one level up to the next; the other 90% is lost as waste heat
Created by: user-1871827
 

 



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