BIOL 1202 : Bio 1202 Exam 1
Document Summary
Descent w/ modification: a darwinian view of life. What is evolution & adaptation: evolution, 1. Change over time of the genetic composition of a population: 2. Descent of modern organisms with modification from preexisting organisms: evolutionary adaptation, accumulation of inherited characteristics that enhance organism"s ability to survive in specific environments. Theory of evolution: lamarck, use & disuse, bodies of living organisms are modified through the use or disuse of parts, inheritance of the acquired characteristics, these modifications are inherited by offspring, these ideas 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. Mechanisms behind natural selection: (flow chart from pg.
