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Stage 1 Biology T4

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Term
Definition
Classification   The process of grouping things based on their similarities  
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Carl Linnaeus   "Father of Taxonomy"; established his classification of living things; famous for animal naming system of binomial nomenclature  
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Bionomial nomenclature   Classification system in which each species is assigned a two-part scientific name  
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Scientific name   genus and species  
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Kingdoms   Monera, Protista, Fungi, Plantae, Animalia  
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Classification levels   Kingdom, Phylum, Class, Order, Family, Genus, Species  
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Animalia   kingdom of multicellular eukaryotic heterotrophs whose cells do not have cell walls  
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Plantae   Kingdom of multicellular photosynthetic autotrophs that have cell walls containing cellulose  
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Fungi   A kingdom made up of nongreen, eukaryotic organisms that have no means of movement, reproduce by using spores, and get food by breaking down substances in their surroundings and absorbing the nutrients  
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Protista   Kingdom composed of eukaryotes that are not classified as plants, animals, or fungi  
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Monera   one celled organism with no distinct nucleus  
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Species   A group of similar organisms that can breed and produce fertile offspring.  
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Features used to classify organisms   - Physical features - Reproductive strategies - Molecular sequencing  
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Dichotomous key   guide designed to identify organisms, uses pairs of observable traits as checklist to pinpoint organisms  
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Common names   For many species, there are often regional differences in their  
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Radiant energy   energy carried by light  
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chemical energy   Energy stored in chemical bonds  
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Biogeochemical cycle   process in which elements, chemical compounds, and other forms of matter are passed from one organism to another  
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Trophic Levels of a Food chain   The levels of producers and consumers in a food chain  
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Nitrogen cycle   The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere  
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Water cycle   The continual movement of water among Earth's atmosphere, oceans, and land surface  
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Abiotic   Non-living  
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Biotic   living things  
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Global warming   An increase in the average temperature of the earth's atmosphere  
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Acidification   increase in the concentration of acid in oceans and soil  
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Biodiversity   the variety of life in the world or in a particular habitat or ecosystem  
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Carbon cycle   The organic circulation of carbon from the atmosphere into organisms and back again  
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Transpiration   Evaporation of water from the leaves of a plant  
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condenstation   the process by which a gas changes to a liquid  
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Precipitation   Any form of water that falls from clouds and reaches Earth's surface.  
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Transferring energy   when energy is passed through tropic levels  
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Producer   An organism that can make its own food.  
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Heterotroph   An organism that cannot make its own food  
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Consumer   An organism that obtains energy by feeding on other organisms  
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Decomposer   An organism that breaks down wastes and dead organisms  
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Autotroph/Producer   An organism that make its own food  
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Food chain   A series of steps in which organisms transfer energy by eating and being eaten  
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Food web   network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem  
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Ecosystems   interactions of all organisms plus abiotic factors at a given time and place  
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Community   All the different populations that live together in an area  
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Population   A group of individuals that belong to the same species and live in the same area  
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Competition   the struggle between organisms to survive in a habitat with limited resources  
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Predation   An interaction in which one organism kills another for food  
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Symbiotic relationship   close interaction between species in which one species lives in or on the other  
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Mutualism   A relationship between two species in which both species benefit  
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Commensalism   A relationship between two organisms in which one organism benefits and the other is unaffected  
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Parasitism   A relationship between two organisms of different species where one benefits and the other is harmed  
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Energy Use   Every organism takes in energy, converts it to useful forms, and expels energy  
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ultimate source of energy   sun  
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energy lost as   heat, movement, growth and repair, reproduction and wastes  
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Tertiary consumer   An organism that eats secondary consumers  
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Trophic Levels   producer, primary consumer, secondary consumer, tertiary consumer  
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