science words
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species | a group of organisms that share similar traits and can reproduce fertile offspring
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competition | a struggle between individuals and species for resources such as food living space mates and other resources
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natural selection | any variation that makes an organism better suited to its envoronment
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evolution | a change in a species over time
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Darwin | the naturalist who proposed the theory of evolution by natural selection
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variation | an inherited trait that makes an individual different from other members of its species
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population | all of the individuals of a species living in the same area
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adaptation | the mechanism of evolution where organisms with the traits best suited to the environment survive and reproduce
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mutations | permanent changes in an organisms genes
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Lamarck | the scientist who proposed the theory of acquired characteristics
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homologous structures | body parts of similar orgin and structure
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geographic isolation | when a new species is formed by a seperation of a mountain
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vestigial structures | body parts with no function
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radioactive dating | using radioactive elements to find the age of a fossil
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embryology | the study of developing organisms
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relative dating | using rock layers to find age of a fossil
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gene pool | all genes in a population that are available for reproduction
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fossils | remains of prehistoric organisms
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fossil record | evidence of organisms that have lived through out time
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dna evidence | evidence for evolution
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linneaus | swedish naturalist who developed the biological classification system
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archaebacteria | found in hot springs and salt ponds kingom of the domain called archaea
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plantae | includes bryophyta pterophyta and coniferophyta
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kingdom | 2nd largest group in biological classification
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eubacteria | causes salmonella and streptococcus
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domain | largest group in the biological classification system
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aristotal | developed the first classification system
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fungi | includes mushrooms and yeast
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dichotomus key | tool used to identify unknowen organisms
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archaea | includes the archaebacteria kingdom
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animalia | includes mammals
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eukarya | has all the main living organisms like animals and plants
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phylum | 3rd largest group in the biological classification system
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protista | includes protist
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bacteria | has the eubacteria kingdoom
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field guide | used to identify different animals and plants
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divisions | smaller groups in which plantae is divided in to
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