Ch 17 Notes - Chapter 17 Introduction to Darwinian...

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

View Full Document Right Arrow Icon
gradual divergence -splitting into separate evolutionary pathways; aka evolution evolution -the accumulation of inherited changes within a population (not individual) over time. population - group of individuals of one species that live in the same geographic area at the same time. species-a group of organisms with similar structure, function, and behavior, that are capable of interbreeding with one another. microevolution - minor evolutionary changes of populations usually viewed over a few generations macroevolution - major evolutionary events usually viewed over a long period, such as the formation of different species from common ancestors. bioremediation - microorganisms used to clean up hazardous wastes PRE-DARWININA IDEAS ABOUT EVOLUTION 1. discuss the historical development of the theory of evolution *Aristotle arranged organisms by “scale of nature” *Leonardo da vinci was among first to recognize fossils **JEAN Baptiste de Lamarck- was the first scientist to propose evolution; ecology affects evolution; if used a lot, got bigger, if not used, shrank. ex: necks of giraffes *When Mendel’s basis of heredity was discovered Lamarck idea was discredited. *mechanism of evolution differs from Darwin Review Why is Aristotle linked to early evolutionary thought? What were Jean Babtiste de Lamarck;s ideas concerning evolution? DARWIN AND EVOLUTION 2. define evolution, and explain the four premises of evolution by natural selection as proposed by Charles Darwin. 3. Compare the modern synthesis with Darwin’s original theory of evolution. Beagle *received degree in theology *explained for the distribution of species among the islands *he studied principals of geology which taught him that the earth changes slowly and earth is very old artificial selection - procedure of selecting certain traits for breeding; ex is found in varying types of dogs. *selective breeding of the colewort or wild cabbage produced all 7 vegetables; broccoli, cabbage, Brussels sprouts, cauliflower, kale, kohlrabi etc *Thomas Malthus, clergyman and economist, was influencial on Darwin. He said that populations compete for food, space, etc and thus wars, disease, famine serve as breaks for population
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 05/01/2008 for the course BIOLOGY 101 taught by Professor Martin during the Spring '08 term at Rutgers.

Page1 / 4

Ch 17 Notes - Chapter 17 Introduction to Darwinian...

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