Terms : Hide Images
| 6770955109 | evolution | the change in a population's inherited traits from generation to generation | 0 | |
| 6770955110 | natural selection | the evolutionary process by which favorable traits that are heritable become more common in successive generations | 1 | |
| 6770955111 | evolutionary adaptations | inherited traits further developed through evolution | 2 | |
| 6770955112 | gradualism | the slow, gradual steps of change | 3 | |
| 6770955113 | uniformitarianism | the philosophy of science that believes that the natural processes operating now are doing so at the same rate as in the past | 4 | |
| 6770955114 | artificial selection | the intentional breeding of certain characteristics over others | 5 | |
| 6770955115 | homology | any similarity between structures due to shared ancestry | 6 | |
| 6770955116 | homologous structures | any structures that are sismilar due to shared ancestry | 7 | |
| 6770955117 | vestigial organs | anatomical structures of organisms in a species which have lost much or all of their original function due to evolution | 8 | |
| 6770955118 | phylogeny | the study of evolutionary relatedness among various groups of organisms | 9 | |
| 6770955119 | population | the collection of people or organisms of a particular species living in a given geographic area or space | 10 | |
| 6770955120 | species | one of the basic units of biological classification | 11 | |
| 6770955121 | Hardy-Weinberg Theorum | a relationship between the frequencies of alleles and the genotype of a population | 12 | |
| 6770955122 | Hardy-Weinberg equilibrium | when alleles are in perfect Hardy-Weinberg proportion | 13 | |
| 6770955123 | Hardy-Weinberg equation | p²+2pq+q²=1 | 14 | |
| 6770955124 | macroevolution | evolution that occurs at or above the species level | 15 | |
| 6770955125 | bottleneck effect | an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing | 16 | |
| 6770955126 | founder effect | establishing a population by a small number of individuals, carrying only a small fraction of the original population's genetic variation | 17 | |
| 6770955127 | gene flow | the transfer of gene alleles from one population to another | 18 | |
| 6770955128 | balanced polymorphism | natural selection maintaining polymorphisms in a population | 19 | |
| 6770955129 | heterozygote advantage | when heterozygotes have greater fitness than homozygotes | 20 | |
| 6770955130 | hybrid vigour | the increased strength of various characteristics in hybrids | 21 | |
| 6770955131 | stabilising selection | a type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value | 22 | |
| 6770955132 | directional selection | when natural selection favors a single allele and therefore, allele frequency continuously shifts in one direction | 23 | |
| 6770955133 | diversifying selection | a type of evolution that simultaneously favors at both extremes of the distribution | 24 | |
| 6770955134 | sexual dimorphism | the systematic difference inbetween individuals of different sexes in the same species | 25 | |
| 6770955135 | microevolution | the occurrence of small-scale changes in allele frequencies in a population over a few generations | 26 | |
| 6770955136 | speciation | the evolutionary process by which new biological species arise | 27 | |
| 6770955137 | anagenesis | the evolution of species involving a change in gene frequency in an entire population | 28 | |
| 6770955138 | phyletic evolution | genetic changes that occur within an evolutionary line | 29 | |
| 6770955139 | cladogenesis | an evolutionary splitting event in which each branch and its smaller branches forms an evolutionary variety of sister organisms | 30 | |
| 6770955140 | branching evolution | when a species evolves separately from itself to form separate groups | 31 | |
| 6770955141 | prezygotic barriers | barriers that prevent mating between species/prevention of egg fertilisation | 32 | |
| 6770955142 | morphical species concept | when species are classified as the same species based on anatomy | 33 | |
| 6770955143 | recognition species concept | a concept that defines a species as a set of organisms that recognise each other as potential mates | 34 | |
| 6770955144 | cohesion species concept | defines a species as a group of organisms that can exchange genetically | 35 | |
| 6770955145 | ecological species concept | defines a species as a set of organisms that are adapted to a particular set of resources | 36 | |
| 6770955146 | evolutionary species concept | a species is a lineage evolving separately from others and with its own unitary evolutionary role and tendencies | 37 | |
| 6770955147 | allopatric speciation | when populations physically separated by an extrinsic barrier evolve so that if the barrier breaks down, they can't breed | 38 | |
| 6770955148 | adaptive radiation | rapid speciation of a single or a few species to fill many ecological niches | 39 | |
| 6770955149 | sympatric speciation | different species sharing the same territory | 40 | |
| 6770955150 | punctuated equilibrium | rare events that cause milestone evoltion branches | 41 | |
| 6770955151 | convergent evolution | where unclosely related organisms evolve similar traits as a result of having to adapt to similar environments | 42 |
