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APES Chapter 5 Vocab Flashcards

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7813993924Species Richnessthe number of species in a given area0
7813993925Species Evennessthe relative proportion of individuals within the different species in a given area1
7813993926Phylogenythe branching pattern of evolutionary relationships2
7813993927EvolutionA change in the genetic composition of a population over time3
7813993928MicroevolutionEvolution below the species level4
7813993929MacroevolutionEvolution that gives rise to new species, genera, families, classes or phyla5
7813993930GenesA physical location on the chromosome within each cell of an organism6
7813993931Genotypesthe complete set of genes in an individual7
7813993932Phenotypesa set of traits expressed by an individual8
7813993933MutationA random change in the genetic code produced by a mistake in the copying process9
7813993934Recombinationthe genetic process by which one chromosome breaks off and attaches to another chromosome during reproductive cell division10
7813993935Artificial SelectionThe process in which humans determine which individuals breed, typically with a preconceived set of traits in mind11
7813993936Natural SelectionThe process in which the environment determines which individuals survive and reproduce12
7813993937FitnessAn individual's ability to survive and reproduce13
7813993938AdaptationsA trait that improves an individual's fitness14
7813993939Gene FlowThe process by which individuals move from one population to another and thereby alter the genetic composition of both populations15
7813993940Genetic DriftA change in the genetic composition of a population over time as a result of random mating16
7813993941Bottleneck EffectA reduction in the genetic diversity of a population caused by a reduction in its size17
7813993942ExtinctionThe death of the last member of a species18
7813993943Founder EffectA change in the genetic composition of a population as a result of descending from a small number of colonizing individuals19
7813993944Geographic IsolationPhysical separation of a group of individuals from others of the same species20
7813993945Allopatric SpeciationThe process of speciation that occurs with geographic isolation21
7813993946Reproductive Isolationthe result of two populations within a species evolving separately to the point that they can no longer interbreed and produce viable offspring22
7813993947Sympatric Speciationthe evolution of one species into two, without geographic isolation23
7813993948Genetically Modified Organisms (GMO)An organism produced by copying genes from a species with a desirable trait and inserting them into another species24
7813993949Range of Tolerancethe limits to the abiotic conditions that a species can tolerate25
7813993950Fundamental NicheThe suite of abiotic conditions under which a species can survive, grow, and reproduce26
7813993951Realized Nichethe range of abiotic and biotic conditions under which a species actually lives27
7813993952Distributionareas of the world in which a species lives28
7813993953Niche Generalista species that can live under a wide range of abiotic or biotic conditions29
7813993954Niche SpecialistA species that is specialized to live in a specific habitat or to feed on a small group of species30
7813993955Mass ExtinctionA large extinction of species in a relatively short period of time31
7813993956SpeciesA group of organisms that is distinct from other such groups in terms of size, shape, behavior, or biochemical properties, and that can interbreed with other individuals in its group to produce viable offspring32

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