Natural Selection

Jean Baptiste Lamarck

• Believed individuals changed over their lifetime because of the physical conditions of their lives.

• An organism changes to

suit their needs, and whatever changes they acquire get passed on to their offspring

Charles Darwin

Vestigial Structures

Snake

Whale

Vestigial Structures

• Evolution of whales

Convergent Evolution

Taxon Pine Tree Bark Beetle

Kingdom Plant Animal

Phylum Pterophyta Arthropoda

Class Gymnospermae Insecta

Order Coniferales Coleoptera

Family Pinaceae Scolytidae

Genus Pinus Dendroctonus

Species ponderosa brevicomis

• http://taggart.glg.msu.edu/isb200/HOMOL.GIF• http://www.wpclipart.com/imgpage.html?http://www.wpclipart.com/famous/s

cience/Charles_Darwin_young.png• http://www.knowprose.com/images/CharlesDarwin.jpg• http://www.kgs.ku.edu/Publications/Bulletins/ED15/gifs/fig1.gif• http://www.biologycorner.com/resources/whale.gif• http://www.loyno.edu/~chood/zooweb/homology.jpg• http://animals.nationalgeographic.com/staticfiles/NGS/Shared/StaticFiles/ani

mals/images/primary/coral-snake.jpg

• http://www.mansfield.ohio-state.edu/~sabedon/campbl23_files/image013.jpg

• http://zebu.uoregon.edu/1998/ph301/selection_change.gif• http://www.greenclub.bc.ca/Green_Club_Activity/GVRD_Parks_Events/

Finches.jpg• http://ebooks.adelaide.edu.au/d/darwin/charles/beagle/images/pl77.jpg• http://www.freewebs.com/carakiller/convergent%20evolution.jpg