BIOL 1510 - Ch 22 notes

BIOL 1510 - Ch 22 notes - 20 Sept 2009 Margo Clark BIOL...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
20 Sept 2009 Margo Clark BIOL 1510 Chapter 22 Group Notes Chapter 22: Descent with Modification; a Darwinian View of Life evolution – descent with modification; a change in the genetic composition of a population from generation to generation Scala Naturae Aristotle’s suggestion that life-forms could be arranged on a ladder, or scale of increasing complexity; each species is fixed and permanent Carolus Linneaus – developed binomial naming system for species and nested classification system fossils – remains or traces of organisms from the past strata – layers of sediment developed over time paleontology – study of fossils Georges Cuvier – developed paleontology by observing changes in fossils in differing strata; advocated catastrophism not evolution catastrophism – principle that events in the past occurred suddenly and were caused by mechanisms different than those operating in the present speculated that each boundary between strata correlated with a catastrophe that destroyed many species James Hutton – proposed that Earth’s geologic features could be explained by gradual mechanisms still operating Charles Lyell – proposed uniformitarianism ; mechanisms of change are constant over time Hutton & Lyell greatly influenced Darwin
Background image of page 1

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

View Full DocumentRight Arrow Icon
Jean-Baptiste Lamarck first to propose a mechanism for evolutionary changes in fossil patterns use and disuse theory – parts of the body used extensively become
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/25/2011 for the course BIO 1510 taught by Professor Unknown during the Spring '07 term at Georgia Tech.

Page1 / 5

BIOL 1510 - Ch 22 notes - 20 Sept 2009 Margo Clark BIOL...

This preview shows document pages 1 - 3. Sign up to view the full document.

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