Terms : Hide Images
| 9463921997 | homologous structures | structures in different species that are similar because of common ancestry |  | 0 |
| 9463921998 | vestigial structures | remnants of features that served important functions in the the organism's ancestors |  | 1 |
| 9463921999 | convergent evolution | the independent evolution of similar features in different lineages |  | 2 |
| 9463922000 | Hardy-Weinberg | the frequencies of alleles and genotypes in a population will remain constant from generation to generation, provided that only Mendelian segregation and recombination of alleles are at work |  | 3 |
| 9463922001 | gene pool | the aggregate of all of the alleles for all of the loci in individuals in a population |  | 4 |
| 9463922002 | population | a group of individuals of the same species that live in the same area and interbreed, producing fertile offspring |  | 5 |
| 9463922003 | natural selection | a process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organisms with other characteristics |  | 6 |
| 9463922004 | genetic drift | changes in the gene pool due to random events | 7 | |
| 9463922005 | founder effect | when a individuals become isolated from a larger population, this smaller group may establish a new population whose gene pool differs from the source population |  | 8 |
| 9463922006 | bottleneck effect | when there is a severe drop in population size, certain alleles may be overrepresented among the survivors, others may be underrepresented, and some may be absent altogether |  | 9 |
| 9463922007 | gene flow | the transfer of alleles into or out of a population due to the movement of fertile individuals or their gametes | 10 | |
| 9463922008 | directional selection | when conditions favor individuals exhibiting one extreme of a phenotypic range, thereby shifting the frequency curve for the phenotypic character in one direction or the other |  | 11 |
| 9463922009 | disruptive selection | when conditions favor individuals at both extremes of a phenotypic range over individuals with intermediate phenotypes |  | 12 |
| 9463922010 | stabilizing selection | acts against both extreme phenotypes and favors intermediate variants |  | 13 |
| 9463922011 | sexual selection | a form of natural selection in which individuals with certain inherited characteristics are more likely than other individuals to obtain mates |  | 14 |
| 9463922014 | heterozygote advantage | when individuals who are heterozygous at a particular locus have greater fitness than do both kind of homozygous | 15 | |
| 9463922016 | speciation | the process by which one species splits into two or more species |  | 16 |
| 9463922019 | species | a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring- but do not produce viable, fertile offspring with members of other such groups | 17 | |
| 9463922020 | reproductive isolation | the existance of biological barriers that impede members of two species from producing viable offspring | 18 | |
| 9463922021 | hybrids | offspring that result from interspecific mating |  | 19 |
| 9463922045 | Darwin's Theory (five parts) | 1. Variation 2. Overproduction 3. Competition 4. Survival of the fittest 5. Overtime, emergence of new species (new alleles) | 20 | |
| 9658456943 | Biogeography | The study of where patterns in organisms occur geographically. Can suggest relatedness between organisms. | 21 | |
| 9658460891 | Radiometric dating | An exact measure of the age of a fossil measured by the amount of radioactive elements in rock | 22 | |
| 9658467086 | Relative Dating | The comparison of fossils in layers of rock to determine relative age | 23 | |
| 9658474537 | Large population size | Required for Hardy-Weinberg equilibrium, ensures that genetic drift is less likely to happen | 24 | |
| 9658479031 | Migration | Movement of organisms and alleles from one population to another | 25 | |
| 9658484470 | p + q = 1 | Part of Hardy Weinberg equilibrium, shows the allele frequencies in a popualtion | 26 | |
| 9658491800 | p² + 2pq + q² = 1 | Part of Hardy Weinberg equilibrium, shows the genotype frequencies in a population | 27 |
