BIOLOGY 101 Chapter Notes - Chapter 22: Selective Breeding, Uniformitarianism, Catastrophism
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Fossils: remnants or traces of past organisms: usually found in sedimentary rocks formed though the compression of layers of sad and mud into superimposed layers called strata. Cuvier developed paleontology: the study of fossils. Hutton proposed that immense changes in the earths geology are the result of slow and continuous processes: ex: river forming a valley. Lyell developed the theory of uniformitarianism: the mechanisms of change are constant overtime. Dar(cid:449)i(cid:374)"s theor(cid:455) fro(cid:373) (cid:271)oth hutto(cid:374) a(cid:374)d l(cid:455)ell: the earth is (cid:448)ery old and very slow processes could produce a substantial change in species. La(cid:373)ar(cid:272)k"s h(cid:455)pothesis e(cid:454)plai(cid:374)ed the (cid:373)e(cid:272)ha(cid:374)is(cid:373) of e(cid:448)olutio(cid:374) usi(cid:374)g t(cid:449)o principles: the use and disuse of body parts leading to their development or deterioration, the inheritance of acquired characteristics, formed in 1809. Adaptations: inherited characteristics of organisms that enhance their survival and reproduction in specific environments: darwin suggested that adaptations arise through natural selection.
