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Fall 2013 Vocab list

Environmental Science Final Exam

TermDefinition
Producer Any organism that absorbs the sun's energy and converts it into food.
Omnivore A kind of animal that eats either other animals or plants.
Herbivore An animal that feeds on plants.
Carnivore An animal that feeds on other animals.
Detritivore An animal that feeds on dead organic material.
Symbiosis A close relationship between two or more different species.
Commensalism A class of relationship between two organisms where one organism benefits without affecting the other.
Mutualism A class of relationship between two organisms where both organisms benefit.
Parasitism A class of relationship between two organisms in which one receives benefits from the other by causing damage to it.
Predation One organism kills and consumes another.
Species A class of individuals having some common characteristics or qualities.
Population A summation of all the organisms of the same group or species.
Communities A group of people living in the same place or having a particular characteristic in common.
Ecosystem A biological community of interacting organisms and their physical environment.
Biosphere The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life.
Biotic The living factors in a community.
Secondary Succession The concept of an ecosystem reviving itself after all or a portion has been damaged.
Pioneer Species Species which colonize previously uncolonized land.
Abiotic The non-living factors in an ecosystem.
Primary Succession The gradual growth of an ecosystem from bare rock, almost nothing.
Trophic Level The position of an organism in a food chain.
Limiting Factors A factor that controls a process, such as an organism growth or species population, size, or distribution.
Food Chain the sequence of who eats whom in a biological community (an ecosystem) to obtain nutrition.
Food Web Consists of all the food chains in a single ecosystem.
Carrying Capacity The maximum number of individuals that an area's resources can sustain.
Consumption Crisis When a resource is being used more quickly than it is being replaced or replenished.
Emigration Inhabitants moving out of an area.
Immigration Inhabitants moving into an area.
Biotic Potential The maximum reproductive capacity of a population under optimum environmental conditions.
Agricultural Revolution A period of agricultural development between the 18th century and the end of the 19th century, which saw a massive and rapid increase in agricultural productivity and vast improvements in farm technology.
Coal A fossil fuel formed from the decomposition of organic materials that have been subjected to geologic heat and pressure over millions of years.
Hydroelectricity The term referring to electricity generated by hydropower
Nuclear Fusion The combining of lightweight atomic nuclei to form a heavier particles.
Biomass Wood, solid waste, or crops used to produce energy.
Nuclear Fission The breaking of the bonds holding together subatomic particles.
Watershed An area of land from which water flows into a river.
Surface Water Water found in lakes, rivers, and streams. Water found on the surface of the earth.
Recharge Zone An area of land through which water percolates to be stored as groundwater.
Aquifer Underground rock formations that hold water.
Reservoir Artificial lake created by building a dam.
Non-point Pollution Water pollution that washes into storm sewers from many places, such as parking lots and lawns.
Eutrophication The process by which nutrients increase in a lake, while oxygen levels decrease.
Pathogen Bacterium, viruses, or parasitic worms that causes disease.
Desalinization The process of removing salt from salt water to make fresh water.
Bioaccumulation A process by which increasing amounts of toxins are stored in the bodies of organisms as toxins move up a food chain.
Overgrazing Allowing so many domestic animals to use rangeland that in cannot renew itself.
Reclamation Restoring land that has been mined.
Wilderness Area where the land and its ecosystem are protected.
Selective Cutting The method of harvesting trees in which only the mature trees are removed.
Deforestation Clearing trees without replacing them.
Created by: SammyGAdawg
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