early ideas for evolution Flashcards
Catastrophism:
earth experienced catastrophic events which caused the extinction of species that were then replaced by new species from a region nearby
Uniformitarianism:
geological changes are slow and continuous and that slow subtle changes can result in substantial change
Line of Descent:
old fossils lead to modern species and increase in complexity overtime
Inheritance of Acquired Traits:
idea that characteristics acquired during an organism’s lifetime can be passed to offspring
Survival of the Fittest:
organisms compete for limited resources. Organisms with favourable traits that help them survive will have an increased chance of reproduction.
Descent with Modification:
theory that natural selection does not demonstrate progress but results in the ability to survive local environmental conditions (darwin)
Natural Selection:
process that results when the characteristics of a population of organisms change over many generations