Ecology Vocabulary Cards.docx - Organism an individual living thing that uses energy reproduces responds grows and develops Species a group of similar

Ecology Vocabulary Cards.docx - Organism an individual...

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Organisman individual living thing that usesenergy, reproduces, responds, grows,and developsSpeciesa group of similar organismsthat can breed and produce fertileofspringPopulationgroup of individuals of the samespecies that live in the same areaCommunityall living, or biotic, thingsin anarea
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Ecosystemall biotic (living) and abiotic(nonliving) things in an area
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Biomegroup of ecosystems that have thesameclimate and dominantcommunitiesBiospherepart of Earth in which life exists including land, water, and air or atmosphereCarbon cyclethe continuous process by which carbon is exchanged between organisms and the environmentReservoir (or sink)a place where anything (ex. carbon) is collected, accumulated, or stored in great amountSource vs. sink (or reservoir)
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regions or processes that predominately produce CO2are called sources (ex. burning fossil fuels or cuttingdown forests), while those that absorb CO2 arecalled sinks (ex. rainforests or phytoplankton inoceans)
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Nitrogen cyclethe continuous process by which nitrogen isexchanged between organisms and the environment;nitrogen fixation is the most critical part of the cyclefor living thingsNitrogen-fixationa process where various types of bacteria convertnitrogen gas from the atmosphere into a form ofnitrogen that is usable by living organisms (we getnitrogen from the food we eat, not from the gas weinhale)Trophic levelstep in a food chain or food webFood chainseries of steps in an ecosystem in which organisms transfer energy by eating and being eatenFood web
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network of complex interactions formed bythe feeding relationships among the variousorganisms in an ecosystem
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Ecological pyramiddiagram that shows the relative amounts ofenergy or matter within each trophic level ina food chain or food web
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