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21 Cards in this Set

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  • Back
Ecology
the study of the interactions of living organiams
biotic
describes living factors in the enviroment
Abiotic
describes the nonliving part of the enviroment
Population
a group of organisms of the same species
Community
all the populations of species that live in the same habitat and interact with eachother
ecosystem
a community of organisms and their abiotic enviroment
biosphere
the part of Earth where life exsists
herbivore
an organism that eats only plants
carnivore
an organism that eats animals
omnivore
an organism that eats both animals and plants
food web
a diagram that shows the feeding reltaionships between organisms in the ecosystem
energy pyramid
a triangular diagram that shows an ecosystem's loss of energy
Carrying Capacity
the largest population that an enviroment can support at any given time
Prey
an organism that is killed and eaten by another organism
Predator
an organism that eats all or part of another organism
Symbosis
a relationship between two different organisms live in close asociation with each other
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 species in which one speciesthe parasite benefits from the other species the host whichis harmed
coevolution
the evolution of two species that is due to mutual influence often in a way that makes the relationship more beneficial to both species
Food Chain
shows how energy and food flows from one organism to another