| Term | Definition |
|---|
| Gene Pool | The total genetic information in the gametes of all the individuals in a population |
| Population | All of the species inhabiting an area |
| Species | A class of individuals having similar characteristics |
| Altruism | Selflessly helping others |
| Genetic Drift | Random changes in the frequency of alleles in a gene pool, usually of small populations |
| Homologous Structure | Part of an organism with similar function and shape but not similar ancestry |
| Analogous Structure | Part of an organism with similar function, but not similar shape |
| Coevolution | This process occurs when two species influence each other during evolution |
| Directional Selection | This occurs when natural selection favors one extreme phenotype over the others |
| Disruptive Selection | This occurs when natural selection favors both extreme phenotypes over the average one |
| Stabilizing Selection | This occurs when natural selection favors the average trait over the extreme traits |
| Founder Effect | The loss of genetic variation that occurs when a new population is established by a very small number of a larger population |
| Vestigial Structure | A structure you no longer need |
| Genetic Drift | The change in allele frequencies when offspring are produced |
| Gene Flow | The transfer of alleles from one population to another |
| Predation | The act of preying on other animals |
| Convergent Evolution | When an organism inherits the same trait as another organism through completely different lineages |
| Bottleneck | When a species' population suddenly drops |
| Africa | The continent that has people who have lots of sickle cell anemia |
| Sedimentary | Most fossils are found in this type of rock |
| Carbon 14 | This radioactive isotope is used in dating of fossils less than 40,000 years old |
| Precambrian | This is the long period of time in which life arose on earth |
| Lamarck | This man came up with the theory of use and disuse (last name) |
| Weismann | This man proved Lamarck's theory wrong by cutting mice tails (last name) |
| Naturalist | This was Darwin's position among the ship H.M.S Beagle |
| Wallace | This man assisted Darwin in the development of the theory of natural selection (last name) |
| On The Origin of Species | This book was published by Darwin |
| Thomas Malthus | This man influenced Darwin's concept of overproduction within a species (full name) |
| Natural Selection | The theory that more important traits will be kept and the others will not |
| Gradualism | When change comes over a long period of time |
| Punctuated Equilibrium | When change comes in spurts |
| De Vries | This man made the theory of mutation (last name) |
| De Vries | The man who came up with the theory of evolution (last name) |
| Population Genetics | The study of hereditary factors affecting a population |
| Adaptive Radiation | When a species fills many different niches and the traits change |
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