Study of the environment
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Ecology | study of interactions among organisms and between organisms in their environment
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| Niche | an organisms ecological role
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| Habitat | the area where an organism lives, including the biotic and abiotic factors that affect it
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| Producer/autotroph | organism that capture energy from sunlight or chemicals and uses it to produce food from inorganic compounds
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| Consumer/heterotroph | organisms that obtain energy form the food it consumes
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| Herbivore/primary consumer | organisms that obtain energy form eating producers
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| Carnivore/secondary consumer | organisms that obtain energy form eating consumers
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| Omnivore | organisms that obtain energy by eating both plants and animals
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| Decomposer | organisms that break down and obtain energy from dead organic material
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| Detritivore | organisms that feed on plant and animal remains and other dead matter
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| Biotic | biological influences
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| Abiotic | physical or non-living factors that shape the ecosystem
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| Organism | living factors in the ecosystem
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| Population | group of individuals of the same species that live in the same area
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| Community | groups of species living together in a specific area
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| Ecosystem | organisms that live in a particular area and their interaction with their non-living (abiotic) parts of the envirnoment
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| Biosphere | part of Earth in whcih life exists including, land, water, and air or atmosphere
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| Photosynthesis | process by which plants and some other producers use light energy to make glucose and oxygen
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| Respiration | the release of energy
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| Chemosynthesis | proces by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates
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| Biomass/energy pyramid/ecological pyramid | total amount of living tissue within a given trophic level
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| Trophic level | feeding level in a food chain or food web
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| Food chain | series of steps in an ecosystem in which organism transfer energy by eating of being eaten
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| Food web | network of complex interactions formed by the feeding relationships among the various organims in an ecosystem
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| Bioaccumulation/biomagnification | increasing concentration of a harmful substance in organisms at higher trophic level in a food chain or food web
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| polluntant | harmful material that can enter the biosphere through land, air, or water
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| population density | the number of individauls per unit area
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| predation | interaction in which one organism captures and feeds on another organism
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| predator-prey relationship | mechanism of population control in which a population is regulated by predation
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| symbiosis | relationship in which two species live closely together
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| transpiration | loss of water from a plant through its leaves
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| sustainable development | using natural resources at a rate that does not deplete them
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| tropism | response of a plant to an environmental stimulus
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| taxis | response of an animal to an environmental stimulus
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| detritus | particles of organic material that provide food for orgamisms at the bse of an estuary's food web
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| denitrification | conversion of nitrates into nitrogen gas (N2)
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| demography | scientific study of human population
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| demographic transiition | change in a population from high birth and death rates to low birth and death rates
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| deforestation | destruction of forest
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| density-dependent limiting factor | limiting factor that depends on population size
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| density-independent limiting factor | limiting factor that affects all populations in similar ways, regardless of population size
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| competition aka competitive exclusion principal | ecological rule that states no two species can occupy the same exact niche in the same habitat at the same time.
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| non-native species/exotic species | a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental.
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Created by:
alice.hansen
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