BIOL 1503 Chapter : BIOL 1503 Ch 22 Learning Objectives
Document Summary
Chapter 22: descent with modification: a darwinian view of life. Chapter learning objectives: define evolution and adaptation. The idea that living species are descendants of ancestral species that were different from the present day ones; narrow definition: change in the genetic composition of a population from generation to generation. Can be viewed as a pattern or a process. Adaptation: inherited characteristic of an organism that enhances its survival and reproduction in a specific environment. Concept 22. 1: the darwinian revolution challenged traditional views of a young. Earth inhabited by unchanging species: describe the theories of catastrophism, gradualism, and uniformitarianism. Catastrophism: principle that events in the past occurred suddenly and were caused by different mechanisms than those operating today. Gradualism: principle that species evolve slowly and continuously over long periods of time. Uniformitarianism: principle that mechanisms of change are constant over time same geologic processes at the same rate.
