BIOL 1202 : Exam One
Document Summary
Descent with modification: a darwinian view of life2/4/2012 7:02:0. Change over time of the genetic composition of a population (this explains diversity: 2. Decent of modern organisms with modification from preexisting organisms. Evolutionary adaption: accumulation of inherited characteristics that enhance organisms" ability to survive in specific environments (we all have certain traits, some help us to survive and reproduce those with less favorable traits to their environment have harder time surviving) Lamark: use & disuse, bodies of living organisms are modified through the use or disuse of parts (giraffes, inheritance of acquired characteristics, these modifications are inherited by offspring, these ideas turned out to be wrong. Darwin and wallace developed the theory independently: darwin-voyage of the beagle, wallace-naturalist in indonesia. Natural selection: the unequal survival and reproduction of organisms due to environmental forces, resulting in the preservation of favorable adaptions, process selects from what is available in the gene pool, new characteristics are not created on demand.
