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Ecology Unit Vocabulary Flashcards

Important vocabulary for the Unit 1-Ecology.

Terms : Hide Images
438739167Food WebA diagram showing all of the interconnected food chains in an ecosystem
438739168BiodiversityLarge variety of organisms and species in an ecosystem
438739169DecomposerAn organism that breaks down dead organisms
438739170Energy PyramidA diagram that shows how energy decreases as it travels through the trophic levels of a food chain
438739171Food ChainA diagram showing how energy passes from one organism to the next in an ecosystem
438739172OmnivoreAn organism that eats both plants and animals
438739173CarnivoreAn organism that eats only other animals
438739174HerbivoreAn organism that eats only other plants
438739175CompetitionWhen two organisms fight over the same resource
438739176CommunityAll of the different populations of organisms living in an area.
438739177BiosphereAll of the living space on earth.
438739178EcosystemLiving and nonliving things interacting in an area
438739179PopulationAll of the members of the same species in an area.
43873918010% ruleThe amount of energy that is transferred from one trophic level to another
438739181PreyThe organism that is hunted
438739182PredatorThe organism that hunts others for food.
438739183AdaptationA trait that helps an organism survive.
438739184Limiting FactorThe scarcest resource that limits a populations size.
438739185Carrying CapacityThe largest population size an ecosystem can hold.
438739186ParasitismA type of relationship where one organism benefits while the other organism is harmed.
438739187CommensalismA type of symbiosis where one species benefits and the other is not helped or harmed.
438739188MutualismA type of symbiosis where two organisms benefit from their relationship with each other.
438739189SymbiosisA relationship where to species interact and one is benefitted.
438739190BioticLiving part of the environment; includes anything made by a living organism
438739191AbioticNon living part of the environment
438739192EcologyThe study of how living things interact with other living things and the environment.
438739193NutrientsChemicals that living things need and use to live and grow. An example is nitrogen.
438739194AutotrophAny organism able to make its own food (aka Producer)
438739195HeterotrophAn organism that has to eat other living things to survive (aka consumer)
438739196EnergyUsed by organisms to do everything it needs to live
438739197GlucoseA type of sugar created by plants to store energy from the sun.
438739198Tertiary ConsumerThird level consumer. Often top of the food chain
438739199Primary ConsumerThe 1st level consumer. Eats producers
438739200Secondary ConsumerEats 1st level consumers. Often is a predator and a prey
438739201Quaternary Consumer4th level consumers. Food chains don't always go this far
438739202ScavengerAn animal that eats other dead animals.
438739203organismone individual living thing
438739205metabolismall of the al processes occuring within a living organism to maintain life
438739206HeterotrophOrganism that must eat other living things for food/survival
582167072nitrogen-fixing bacteriaa microscopic organism that can take nitrogen gas from the atmosphere and convert it into a solid form for plants to use.
582193222primary successionthe development of communities in an area with no soil or biotic elements (e.g. bare rock).
582193223climax communitya stable, mature community in a successive series that has reached equilibrium.
582193224biological magnificationprocess by which pollutants become more concentrated in successive trophic levels of a food web

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