warm up 1/15-1/16 - mrs. weisenbach's biology cabin · warm up 1/15-1/16 1. take out your...
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Warmup1/15-1/16
1. Takeoutyourlaptopanddatatables/graphsfromMonday’slab.
2. LogintoGoogleClassroom3. DiscussyouranswerstothePost-LabGoogle
Classroomquestionsyouwereassignedforhomework!
*Wewillbediscussingasaclassafter
5minutes.*
Agenda
• Warmup• 15.1Notes:NaturalSelectionandEvidenceforEvolution
• “EvidenceforEvolution”stations
**Quickquizforwarmupnextclass**
Homework:15.1SectionAssessment(pg.403#1-5)DUEFRI/TUES
Ch14/15ExamnextWed/Thurs
15.1NaturalSelection&EvidenceforEvolution
CharlesDarwin
• CharlesDarwin-Englishscientist(1809-1882)isfounderofmodernevolutionarytheory.
• Tooka5yearvoyagetoSouthAmericaandSouthPacificaboardHMSBeagle
• Carefulstudyofplantsandanimalshelpedhimdevelophisevolutionarytheory
DarwinStudiedNaturalWorldonVoyageoftheBeagle
Darwin’sobservationsinGalapagos
• ObservationsmadeinGalapagosIslandsweremostimportantforhishypothesis
• Foundmanyspeciesofplantsandanimalsuniquetoislandbutsimilartospeciesseeninotherpartsoftheworld
https://www.youtube.com/watch?v=WAKppAtIeh8
ArtificialSelection
Darwin’sExplanationforEvolution-NaturalSelection
• NaturalSelection-changeinpopulationsthatoccurswhenorganismswithfavorablevariationsforanenvironmentsurvive,reproduce,andpassthesevariationson(adaptations)
• Eachnewgenerationhasoffspringfromparentswithfavorablevariations(adaptations)
NaturalSelectionandAdaptations
• Adaptationisanytraitthataidsthechancesofsurvivalandreproductionofanorganism– Structural,physiological,structural
• Darwin’stheoryofevolutioncanbeappliedtoexplaintheevolutionofadaptationsinorganisms
PhysiologicalandBehavioralAdaptations
StructuralAdaptations
• Camouflage-allowsanimaltoblendinwithitssurroundings
• Mimicry-copiestheappearanceofanotherspeciesforprotection
*Show pictures
EvidenceForEvolution
• Fossils• Comparativeanatomy• Vestigialstructure:Bodystructureinapresent-dayorganismthatnolongerservesitsoriginalpurpose
• Embryologicaldevelopment• Biochemicalevidence
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