BIOL 1202 : Test 1
Document Summary
Chapter 22: descent with modification: a darwin view of life. Pre-darwinian theory of evolution: use and disuse, bodies of living organisms are modified through the use or disuse of parts. Inheritance of acquired characteristics: these modifications are inherited by offspring, these all turned out to be wrong. Evolution by natural selection: 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 adaptations, process selects from what is available in the gene pool, new characteristics are not created on demand. Mechanism behind natural selection: observations, individuals in population vary in their heritable characteristics, organisms produce more offspring than the environment can support. Selective breeding of organisms to encourage the occurrence of desirable traits. Concept 22. 3: evolution is supported by an overwhelming amount of scientific evidence.
