PBSI 311 EXAM 2025-2026 WITH
QUESTIONS AND
ANSWERS
4ymodesyofysexualyselectiony- ANSWER
1)yevolutionyofymatingypreferences
2) learningyandysexualyselection
3) culturalytransmissionyandyfemaleymateychoice
4) male-maley competition
AccordingytoyReadingy#8a,yallyofytheyfollowingystatementsya
boutymusselyshellsyhandledybyyseayottersyareytrueyEXCEPT?y-
ANSWERytheytwoyhalvesyofytheyshellyareynotyconnected
AccordingytoyReadingy#8a,ywhichyofytheyfollowingystateme
ntsyaboutytoolyuseyinyseayottersyisytrue?y- ANSWER
seayottersyuseystationaryyanvilystonesyonlyyforymussels
AccordingytoyReadingy#8b,yallyofytheyfollowingybehaviorsy
helpycapuchinymonkeysyavoidy"imperfect"youtcomesywheny
crackingynutsywithyunfamiliarystonesyEXCEPT?y- ANSWER
throwingytheystone
AccordingytoyReadingy#8b,ywhichyofytheyfollowingystatement
syaboutytoolyuseyinycapuchinymonkeysyisytrue?y- ANSWER
theyycannotybreakynutsyopenywithoutytools
agriculture-practicingy animalsy - ANSWER 1)yHumans
2) Barkybeetles
3) Termites
4) Ants
,Allyofytheyfollowingyareyadvantageyassociatedywithypolygynyyi
nytheyBrazilianyFrogyT.ytaophora::y- ANSWER
allowsyfemalesyaccessytoyaygoodyqualityymale:yAllowsyfemalesy
accessytoyaygoodyquality
,breedingysite:yallowsyforydiversityyinygeneypool
*doesyNOTyencourageymalesytoyshareytheirybreedingysitesywit
hyotherymales
Allyofytheyfollowingycanybeypartyofytheycourtshipyritualyofythey
maleysuperbylyrebirdy- ANSWER
Mimickingycallsyofyotherybirdyspecies:
Shakingytailyfeathers:yMimickingywingbeatyso
undsyofyotherybirdyspecies
*doesynotyharrassyanyimaginaryypredator
Allyofytheyfollowingycontributeytoytheymaintenanceyofyallo
maternalynursingyinygoldenysnub-nosedymonkeysyexcepty-
ANSWERymisdirectedyparentalycare
allyofytheyfollowingystatementsyapplyytoybehavioryinyjealo
usytitiymonkeys:y- ANSWER
Theyyarchytheiryback:yTheyylashytheirytailsybackyandyforth:y
Aymaleymayyholdyhisypartner
backy fromy interactingy withy anothery male
*doesyNOTyexhibitymoreyintenseyjealousybehaviorsycompare
dytoyaymale
Allyofytheyfollowingywereyusedytoyassessycognitiveyabilityyin
yMALEybudgerigars?y- ANSWER
spatialymemory:yproblemysolving:yseedydiscrimination
*noywarbleysong
Antyforaging:yfungus-growingy- ANSWER
Atyleasty20yspeciesyofyfungus-
growingyantsyhaveystreptomycesybacteria,ywhichyproducesy
antibiotics
Bacteriaypassedyfromyparentytoyoffspring
, Onlyyfemaleyreproductiveyantsy'cultivate'yfungusygardensya
ndycarryybacteria
Bacteria'sy antibioticsy killy onlyy specificy parasitesy ofy fungus
QUESTIONS AND
ANSWERS
4ymodesyofysexualyselectiony- ANSWER
1)yevolutionyofymatingypreferences
2) learningyandysexualyselection
3) culturalytransmissionyandyfemaleymateychoice
4) male-maley competition
AccordingytoyReadingy#8a,yallyofytheyfollowingystatementsya
boutymusselyshellsyhandledybyyseayottersyareytrueyEXCEPT?y-
ANSWERytheytwoyhalvesyofytheyshellyareynotyconnected
AccordingytoyReadingy#8a,ywhichyofytheyfollowingystateme
ntsyaboutytoolyuseyinyseayottersyisytrue?y- ANSWER
seayottersyuseystationaryyanvilystonesyonlyyforymussels
AccordingytoyReadingy#8b,yallyofytheyfollowingybehaviorsy
helpycapuchinymonkeysyavoidy"imperfect"youtcomesywheny
crackingynutsywithyunfamiliarystonesyEXCEPT?y- ANSWER
throwingytheystone
AccordingytoyReadingy#8b,ywhichyofytheyfollowingystatement
syaboutytoolyuseyinycapuchinymonkeysyisytrue?y- ANSWER
theyycannotybreakynutsyopenywithoutytools
agriculture-practicingy animalsy - ANSWER 1)yHumans
2) Barkybeetles
3) Termites
4) Ants
,Allyofytheyfollowingyareyadvantageyassociatedywithypolygynyyi
nytheyBrazilianyFrogyT.ytaophora::y- ANSWER
allowsyfemalesyaccessytoyaygoodyqualityymale:yAllowsyfemalesy
accessytoyaygoodyquality
,breedingysite:yallowsyforydiversityyinygeneypool
*doesyNOTyencourageymalesytoyshareytheirybreedingysitesywit
hyotherymales
Allyofytheyfollowingycanybeypartyofytheycourtshipyritualyofythey
maleysuperbylyrebirdy- ANSWER
Mimickingycallsyofyotherybirdyspecies:
Shakingytailyfeathers:yMimickingywingbeatyso
undsyofyotherybirdyspecies
*doesynotyharrassyanyimaginaryypredator
Allyofytheyfollowingycontributeytoytheymaintenanceyofyallo
maternalynursingyinygoldenysnub-nosedymonkeysyexcepty-
ANSWERymisdirectedyparentalycare
allyofytheyfollowingystatementsyapplyytoybehavioryinyjealo
usytitiymonkeys:y- ANSWER
Theyyarchytheiryback:yTheyylashytheirytailsybackyandyforth:y
Aymaleymayyholdyhisypartner
backy fromy interactingy withy anothery male
*doesyNOTyexhibitymoreyintenseyjealousybehaviorsycompare
dytoyaymale
Allyofytheyfollowingywereyusedytoyassessycognitiveyabilityyin
yMALEybudgerigars?y- ANSWER
spatialymemory:yproblemysolving:yseedydiscrimination
*noywarbleysong
Antyforaging:yfungus-growingy- ANSWER
Atyleasty20yspeciesyofyfungus-
growingyantsyhaveystreptomycesybacteria,ywhichyproducesy
antibiotics
Bacteriaypassedyfromyparentytoyoffspring
, Onlyyfemaleyreproductiveyantsy'cultivate'yfungusygardensya
ndycarryybacteria
Bacteria'sy antibioticsy killy onlyy specificy parasitesy ofy fungus
