Chapter_22_Learning_Objectives

Chapter_22_Learning_Objectives - Chapter Learning...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter Learning Objectives Chapter 22: Descent with Modification: a Darwinian View of Life Define evolution and adaptation. a. Change over time of a genetic change in population NOT species! b. Adaptation – accumulation of inherited characteristics (highlighted blonde hair, muscles) that enhance organisms ability to survive in an environment i. Moles over time have inherited (natural selection) big claws good for digging gives them a better suited environment to live underground 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. a. Catastrophism - The hypothesis that a series of immense, brief, worldwide upheavals changed the Earth's crust greatly and can account for the development of mountains, valleys, and other features of the Earth. b. Uniformitarianism - The scientific principle that natural processes operated in the past in the same way that they operate today c. Gradualism – slow, gradual evolutionary change Explain the mechanism for evolutionary change proposed by Jean- Baptiste de Lamarck a. Prior to Darwin’s theory…bodies of living organisms are modified
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/26/2009 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

Page1 / 3

Chapter_22_Learning_Objectives - Chapter Learning...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online