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Evolution

TermDefinition
Evolution change in populations characteristics over time due to forces of nature
Charles Darwin came up with his theory of evolution based on the finches on the galapagos islands
Jean-Baptiste Lamarck theory of use and disuse
Charles Lyell earth was shaped millions of years, wrote Principles of Geology
James Hutton earth is shaped by natural forces
Thomas Malthus factors such as limited food prevent overpopulation
Theory of use-and-disuse Lamarck stated that if a trait was used it would be passed on. If it was not used the trait would be lost over a few generations
Acquired characteristics keeping a trait due to use and disuse
Theory of natural selection species that are best adapted to their environment survive more often.
Survival of the Fittest species that are best fit for the environment will be able to compete and survive
Struggle for existence not having the adaptations needed for evolution,
Adaptation the ability of a organism to change based on their environment
Gene pool collection of genes in a population
Artificial selection when people naturally select their breeding choices (picking blank color dog and a strong dog to reproduce)
Homologous structures Similar arrangement of bones indicates relatedness (but function may differ)
Analogous structures Different bone arrangement, but function is the same (not closely related)
Vestigial structures are body parts that no longer have any function, but are believed to have been important in the past.
Anatomy compares bone structure
Comparative anatomy Similar or different arrangement of bones indicates if species are related
Comparative embryology similar stages in fetal development indicates relatedness
Comparative genetics similar DNA indicates relatedness
Comparative biochemistry Similar amino acids sequence for a protein indicates relatedness
Fossil record similarities in fossils indicates relatedness
Hominid human and their ancestors
Primate original branch on evolutionary tree
Evolutionary tree a diagram that shows evolutionary relationships overtime
Common descent (ancestry) two organisms have the same ancestor
Australopithecus Afarensis lucy, can stand up on two legs
Australopithecus Boisei herbivore, about 4.5 feet tall and walk on two legs
Homo Habilis handy man, used rocks as weapons
Homo Ergaster new enormous brian, cooling system
Homo heidelbergensis ice age, southern England
Neanderthals Cavemen, short limbs, extremities for heat
Homo sapien thinking man, imaginacion
Created by: cameronstorch