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Ecology

simple ecology terms

worddefinition
niche how an organism survives, including its habitat, how it obtains food and shelter, and how it avoids danger
habitat the place in which an organism lives
population all the organisms in an ecosystem that belong to the same species
community all the populations in an ecosystem
ecosystem all the organisms living in an area and the nonliving features of their enviornment
biosphere the part of Earth that supports life, including the top portion of Earth's crust, all the waters that cover Earth's surface, and the surrounding atmoshpere
limiting factor anything that restricts the number of individuals in a population
carrying capacity the largest number of individuals of one species that an ecosystem can support over time
ecology the study of interactions that occur among organisms and their enviornments
producer organisms that use an outside energy source, such as the sun, to make energy-rich molecules
consumer organisms that can't make their own energy-rich molecules
symbiosis any close relationship between species
mutualism a symbiotic relationship in which both species benifit
commensalism a symbiotic relationship in which an organism benefits and the other is not affected
parasitism a symbiotic relationship in which one organism benefits but the other is harmed
predator a carnivore eating another animal (prey)
prey the animal being eaten by the predator
competition when animals fight for the same resources
chemosynthesis the production of energy-rich molecules from chemicals
food web a model that shows all the possible feeding relationships among the organisms in a community
energy pyramid show the amount of energy available at each feeding level in an ecosystem
food chain way of showing how matter and energy pass from one organism to another
Created by: gerbilover10
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