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Goal 3.05c: Evidence of Evolution. Roots: m orph = shape o logy = study of Ana = without Homo = same. antidarwinism.com. Human footprints from early man found at Laetoli by Dr. Mary Leakey. Fossils = preserved remains of an organism that lived many years ago. FOSSIL EVIDENCE. - PowerPoint PPT Presentation
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Goal 3.05c:Evidence of Evolution
Roots:morph = shapeology = study ofAna = withoutHomo = same
Human footprints from early man found at Laetoli by Dr. Mary Leakey.
antidarwinism.com
lboeckl.net
Fossils = preserved remains of an organism that lived many years ago.
www.greenriverstone.com
ngphotooftheday.blogspot.com
lovingthebigisland.wordpress.com
www.fossilmuseum.net
graphics8.nytimes.comimages.icnetwork.co.uk
IDA: Revealing the Linkhttp://www.revealingthelink.com/more-about-ida/the-film
FOSSIL EVIDENCE
Comparative Morphology = study of the forms/shapes of organisms.HOMOLOGOUS Structures = same shape but different functions.
Comparative Morphology = study of the forms/shapes of organisms.ANALOGOUS Structures = different shape but used for same thing.
Convergent evolution = evolution of similar solutions to similar problems without being evolutionarily connect.
3 groups with wings– Does this mean
they have a recent common ancestor?
Flight evolved 3 separate times — evolving similar solutions to similar “problems”
Flight evolved 3 separate times — evolving similar solutions to similar “problems”
Convergent evolution led to mimicry (harmless organisms having similar appearance to a harmful organism)
Monarch malepoisonous
Viceroy maleedible
fly bee moth bee
Which is the fly vs. the bee?Which is the moth vs. the bee?
• Why do these pairs look so similar?
Vestigial organs = organs that are still present but are no longer useful.
• Hind leg bones on whale fossils
Why would whales have pelvis & leg bones if they were always sea creatures?
Why would whales have pelvis & leg bones if they were always sea creatures?
Comparative embryology =
• Development of embryo tells an evolutionary story – similar structures during development
HumanFishCalfSalamanderHogTortoiseRabbitchicken
1 2 3 4 5 6 7 8
Development of embryo tells an evolutionary story
Molecular record
100 20 30 40 50 60 70 80 90 100 110 120
LampreyFrogBirdDogMacaqueHuman
328 45 67 125
• Comparing DNA & protein structure– everyone uses the same genetic code! • DNA
compare common genes compare common proteins
compare common genes compare common proteins
number of amino acids different from human hemoglobinnumber of amino acids different from human hemoglobin
DNA Fingerprints and EvolutionThe closer the match for DNA fingerprints, the closer the
evolutionary relationship of the two organisms.
1 2 3 4
Who
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Evidence of Evolution http://player.discoveryeducation.com/index.cfm?guidAssetId=AE274F5F-0937-430A-8762-D4BB56C72CBC&blnFromSearch=1&productcode=US
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