ANTH 1001 : Anthropology Exam 1
Document Summary
Principle of fixity of species-species were unchangeable after their creation. 1st to explain how a species can change overtime. Theory of the inheritance of acquired characteristics (theory of use and. All organisms have needs in order to survive. Needs are met by the modification of organs or the development of new organs. Georges cuvier (1769-1832) (alternatively , lack of use leads to degeneration and loss) Continue use of organs leads to an increase in size and functional capability. Changes that occur during an organism"s lifetime are inheritable and can be passed to one"s offspring. Theory of catastrophism-in the past, there were a series of sudden and violent geological and climactic changes that led to the extinction of species in the affect regions. After the event subsided, the area was repopulated by migration of similar looking, but not identical, species from neighboring areas. Theory of uniformitarianism-forces acting today that shape the earth are the same forces that acted in the past.
