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Life Science: Essential Terms 2

Life Science: Essential Terms 2

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Tags: science   biology   high school   life science   ngss   hs-ls1-1   ls1  

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genotype
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internally coded, inheritable genetic information
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phenotype
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the outward manifestation of an organism's genes
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homologous
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having the same relation, relative position, or structure, in particular
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evolution
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the change in the inherited characteristics of populations over many generations
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adaptive radiation
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diversification of organisms, usually when environmental changes occur
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convergent evolution
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independent evolution of similar features in species of different lineages
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divergent evolution
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accumulation of differences between groups which can lead to the formation of new species
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fossil
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the preserved remains or traces of organisms fro the past
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natural selection
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process by which traits become either more or less common in a population
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extinction
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the end of a species
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adaptation
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a trait that is maintained and evolved through natural selection
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survival of the fittest
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phrase often used to describe natural selection
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protein
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large molecules consisting of one or more chains of amino acid residues
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amino acid
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organic compounds composed of amino and carboxylic acid
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cell structures
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system of organelles that make up a cell
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cytoplasm
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substances outside of a cell's nuclear membrane; includes cytosol and organelles
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membrane
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structure that separates the interior of cells from the outside
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cell wall
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tough, sometimes rigid layer that surrounds some cells
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