warm up 1/15-1/16 - mrs. weisenbach's biology cabin · warm up 1/15-1/16 1. take out your...

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