Evolution Ch17 and 18 (got 93% on the test)

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Department
Biological Sciences
Course
BIOL 3040
Professor
All Professors
Semester
Winter

Description
EvolutionChapter17SexualSelectionGoodGenesoffspringhealthandsurvivalDarwinthoughtofsexualselectionbasedoninteractionswindividualsofoppositesexthatdrivecharacteristicsIncludedthePFowlhensaredullcoloredfeathersbutmalepeacockshavelargefeathersandbrightcoloredplumageFemalespreferredtheirmalestohavelargerbrighterfeatherstopassonthosetraitstotheiroffspringWhythosefeathersoOneideaThosefeatherssignalaboutthequalityofthosemalesgenesElaboratetailfeathersprettygoodgeneshigherfitnessintheoffspringResultsofastudyofapfowlpopulationlookedatsuccessofmalesoffspringincorrelationtoqualityoftailfeatherasmeasuredtoareaofeyespotsfoundthatoffspringwerehealthierPositivecorrelationMoretailfeathereyespotsonthefathertheheavieritsmaleoffspringarePositivecorrelationbwmeanareaoffatherseyespotandpercentsurvivalofchicksCLICKERQUESTIONWhichofthefollowingismostlikelytohavebeenproducedbysexualselectionAlionsmaneBrightcolorsoffemaleflowersDifferentsizesofmaleandfemalepineconesCamouflagecolorationinanimalsOverviewofSexualSelectionSexualSelectionselectiongeneratedbydifferentialaccesstooppositesexgametesormatesIntersexualSelectionindividualsofonesexselectamongindividualsoftheothersexasmatesIntrasexualSelectionmembersofonesexmostoftenmalescompeteweachotherformatingaccesstotheothersexFourBasicMatingSystemsMonogamy1male1femalePolygyny1malemorethan1femalePolyandry1femalemorethan1malePolygynandrymorethan1malemorethan1femaleDifferentSelectiveProcessesOperateonMalesandFemalesAnisogamydifferenceinthesizeofthegametesthatformsthebasisofthedefinitionofmalesandfemalesoBecauseeggsarethelimitingresourcemalesshouldcompeteforaccesstomatingopportunitieswfemalesoBecauseeggsareexpensiveandrarelimitingresourcefemalesshouldbethechoosiersexEggsarelargerandmoreenergeticallyexpensivehigherreplacementvalueInspecieswinternalgestationfemalesareusuallytheonlysextodevoteenergytooffspringbeforetheyarebornMaleandFemaleReproductiveSuccessLotsofmalesthatproducefewmalesFewmalesthatproducelotsofoffspringNotmanyfemalesthatproduceawholelotbutveryfewthatproducenonemostfemalesproduceanintermediatenumberofoffspringCLICKERWhichofthefollowingshouldmakefemalesthechoosiersexEggsareexpensiveandrarecomparedtospermFemalestendtoinvestmoreingestationandparentalcareFemalequalityneverplaysaroleinmalematingdecisionsMalesandfemalesshowaboutthesamevariationinqualityABIntersexualSelectionIndividualsofonesexselectamongindividualsoftheothersexmatesoDirectbenefitsoGoodgenesoRunawaysexualselectionoSensorybiasDirectBenefitsModelSelectionfavorsfemaleswhohaveageneticpredispositiontochoosematesthatprovidethemwsomeresourceswhichincreasetheirfecundityorsurvival
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