BIOL101 Ekdale - Exam 3 questions with
correct answers 2026
secondarybbonebplateb-bCORRECTbANSWERSb-
internalbnostrilbpositionedbposteriorlyb(allowsbbreathingbduringbeating)binbArchosauria
amnioticbeggb-bCORRECTbANSWERSb-majorbfunctionbisbprotectionbfrombdrying
neuralbcrestbcellsb-bCORRECTbANSWERSb-
cellsbalongbthebsidesbofbthebdevelopingbnervebcordbthatbmigratebtobformbvariousbregionsbofbthebbo
dybinbCephalochordates
operculumb-bCORRECTbANSWERSb-coversbgillsbforbprotectionbinbOsteichthyes
carapaceb-bCORRECTbANSWERSb-dorsalb(backbside)bofbthebshellbinbTestudinesb(turtles)
plastronb-bCORRECTbANSWERSb-ventralb(bellybside)bpartbofbshellbinbTestudines
lateralblinebsystemb-bCORRECTbANSWERSb-detectsbmotionbinbwaterbinbGnathostomes
claspersb-bCORRECTbANSWERSb-
pairedbappendagesbassociatedbwithbinternalbfertilizationbinbGnathostomes
pinealborganb-bCORRECTbANSWERSb-
endocrinebglandbinbbrain,bsensitivebtoblight,bsecretesbserotoninb(regulatesbcircadianbrhythm)binbVer
tebrates
, myoglobinb-bCORRECTbANSWERSb-coloredbproteinbinbmusclesbthatbstoresboxygenbinbVertebrae
notochordb-bCORRECTbANSWERSb-
flexiblebrodbthatbextendsbalongbdorsalbedgebofbthebchordatebbodybforbsupportbinbChordata
exaptationb-bCORRECTbANSWERSb-pre-existingbfeaturesbthat'sbcooptedbforbabnewbfunction
endostyleb-bCORRECTbANSWERSb-pouchbinbthroatbwithbmucusbtobtrapbfoodbinbChordata
hemipenesb-bCORRECTbANSWERSb-pairedbcopulatoryborgansbinbmalebinbSquamata
buccalbpumpb-bCORRECTbANSWERSb-usedbforbrespirationbandbvocalizationbinbAnurab(frogs)
kineticbskullb-bCORRECTbANSWERSb-allowsbanimalsbtobeatblargebpreybinbLepidosauria
CladesbofbEchinodermb-bCORRECTbANSWERSb-Asteroideab-bstarfish
Holothuroideab-bseabcucumbers
Ophiuroideab-bbrittlebstars
Echinoideab-bseaburchins
Hemichordatab-bCORRECTbANSWERSb-"semi-chorded"
-Enteropneustra
-Pterobranchs
Chordatabsynapomorphiesb-bCORRECTbANSWERSb-"chorded"
1.bnotochord
correct answers 2026
secondarybbonebplateb-bCORRECTbANSWERSb-
internalbnostrilbpositionedbposteriorlyb(allowsbbreathingbduringbeating)binbArchosauria
amnioticbeggb-bCORRECTbANSWERSb-majorbfunctionbisbprotectionbfrombdrying
neuralbcrestbcellsb-bCORRECTbANSWERSb-
cellsbalongbthebsidesbofbthebdevelopingbnervebcordbthatbmigratebtobformbvariousbregionsbofbthebbo
dybinbCephalochordates
operculumb-bCORRECTbANSWERSb-coversbgillsbforbprotectionbinbOsteichthyes
carapaceb-bCORRECTbANSWERSb-dorsalb(backbside)bofbthebshellbinbTestudinesb(turtles)
plastronb-bCORRECTbANSWERSb-ventralb(bellybside)bpartbofbshellbinbTestudines
lateralblinebsystemb-bCORRECTbANSWERSb-detectsbmotionbinbwaterbinbGnathostomes
claspersb-bCORRECTbANSWERSb-
pairedbappendagesbassociatedbwithbinternalbfertilizationbinbGnathostomes
pinealborganb-bCORRECTbANSWERSb-
endocrinebglandbinbbrain,bsensitivebtoblight,bsecretesbserotoninb(regulatesbcircadianbrhythm)binbVer
tebrates
, myoglobinb-bCORRECTbANSWERSb-coloredbproteinbinbmusclesbthatbstoresboxygenbinbVertebrae
notochordb-bCORRECTbANSWERSb-
flexiblebrodbthatbextendsbalongbdorsalbedgebofbthebchordatebbodybforbsupportbinbChordata
exaptationb-bCORRECTbANSWERSb-pre-existingbfeaturesbthat'sbcooptedbforbabnewbfunction
endostyleb-bCORRECTbANSWERSb-pouchbinbthroatbwithbmucusbtobtrapbfoodbinbChordata
hemipenesb-bCORRECTbANSWERSb-pairedbcopulatoryborgansbinbmalebinbSquamata
buccalbpumpb-bCORRECTbANSWERSb-usedbforbrespirationbandbvocalizationbinbAnurab(frogs)
kineticbskullb-bCORRECTbANSWERSb-allowsbanimalsbtobeatblargebpreybinbLepidosauria
CladesbofbEchinodermb-bCORRECTbANSWERSb-Asteroideab-bstarfish
Holothuroideab-bseabcucumbers
Ophiuroideab-bbrittlebstars
Echinoideab-bseaburchins
Hemichordatab-bCORRECTbANSWERSb-"semi-chorded"
-Enteropneustra
-Pterobranchs
Chordatabsynapomorphiesb-bCORRECTbANSWERSb-"chorded"
1.bnotochord