process by which individuals that are better adapted to the environment are more likely to survive and reproduce than others
Hutton and Lyell
scientists who proposed the Earth was millions of years old due to their geological findings.
scientist who proposed natural events caused previous animal species to become extinct.
predicted the population would outgrow the food source if restrictions were not put in place
French naturalist who proposed that evolution resulted from the inheritance of acquired characteristics
body structure that has no function in a present day organism but was useful to an ancestor
a model of evolution in which gradual change over a long period of time leads to biological diversity
is the idea that the geologic processes that operate today also operated in the past
theory stating that in the absence of forces that change the proportions of alleles at a give locus, the original genotype proportions will remain constant from one generation to the next, in a large population with random mating
the change in frequencies of particular alleles in a small population, caused by chance alone
movement of new genes into a gene pool. This movement can reduce difference between populations that were caused by isolation and genetic drift.
any situation in which individuals do not choose mates on a random basis, such as mating in base don proximity, relatedness, or similarity of phenotype
cause of genetic drift due to a small group of individuals colonizing a new area; the small group probably will not contain all the genes represented in the parent population
occurs when a population is greatly reduced by events such as natural disaster or over hunting, resulting in certain alleles being overrepresented and other alleles being underrepresented or absent in the population due to chance
type of non-random mating in which individuals choose partners that have similar phenotype such as size
selection for mating based in general on competition between males and choices made by females (ie. humans)
theory that life on Earth occurred began as the natural result of the evolution of inorganic matter
suggest that life originated elsewhere in the universe and then migrated to our planet
view that earth is a living super organism which is maintained and regulated by life on its surface
intelligent design theory
suggests that life mechanisms are too complex to have evolved by chance, must have been directed by an unidentified supernatural intelligence
the merging of organisms into new collectives; development of a new species through close association of organisms of different species that is of mutual benefit