BIO 182 QUESTIONS AND ANSWERS UPDATES 2026

BIO 182 - LAB EXAM QUESTIONS AND CORRECT
ANSWERS UPDATES 2026

AnotherBnameBforBaBfertilizedBeggBisBaB-BCORRECTBANSWER-Zygote

NameBtheBcellBdivisionBprocessB(startsBwithBtheBletterB"m")BinBwhichBtheBfertilizedBeggsBdevelopBin
toBaBmulticellularBembryoB-BCORRECTBANSWER-Mitosis

TheBembryonicBstageBreferredBtoBasBaBhollowBballBofBcellsBisBcalledBtheB______________________
_BandBitsBcentralBcavityBisBtheB____________________________B-BCORRECTBANSWER-BlastulaB-
BBlastacoel



NameBtheBembryonicBstageBwhereBcellsBareBmovingBinwardBtowardBtheBcentralBcavityB(invaginatio
n)BformingBtheBbeginningBofBtheBprimitiveBdigestiveBsystemBorBarchenteronB(archB(G)B=Bprimitive;B
enteronB(G)B=Bgut)B-BCORRECTBANSWER-Gastrulation

StomaBisB(G)BmeaningBmouthBandBdeuteroBisB(G)BforB2nd.BTherefore,BdeuterostomesBareBorganism
sBinBwhichBtheB2ndBembryonicBopeningBbecomesBtheB_______________________BofBtheBorganis
mBandBtheB1stBopeningBorBblastoporeBbecomesBtheB_____________________B-
BCORRECTBANSWER-MouthB-BAnus



NameBtheB2BmajorBphylaBthatBareBdeuterostomes:B_______________________________BandB___
___________________B-BCORRECTBANSWER-PhylumBEchinodermataB-BPhylumBChrodata

ProtoBisB(G)BforBfirst;Btherefore,BinBorganismsBthatBareBprotostomesBtheB1stBopeningBbecomesBtheB
__________________.BArthropods,BwhichBmakeBupB80%BofBallBtheBanimalBspecies,BareBprotostom
esB-BCORRECTBANSWER-Mouth

EctodermBdevelopsBintoBtheB________________________BandB_____________________;Bmeso
dermBdevelopsBintoB____________________BandBendodermBdevelopsBinto__________________
_____B-BCORRECTBANSWER-Skin,Bnerves,Bmuscle,BdigestiveBtube

NameBtheBflagellatedBcellBinBphylumBPoriferaBthatBpropelsBwaterBthroughBtheBbody:___________
___B-BCORRECTBANSWER-Choanocyte

WaterBinBspongesBcirculatesBinwardBviaBporesBintoBaBcavityBcalledBtheB______________BandBexitsBt
hroughBtheBopeningBcalledBtheB_______________________B-BCORRECTBANSWER-Spongocoel

NameBtheBcellBinBPoriferaBthatBproducesBspicules.________________________B-
BCORRECTBANSWER-sclerocytes

, NameBtheB3BkindsBofBspicules.B____________________,B___________________,B_____________
____B-BCORRECTBANSWER-calciumBcarbonate,Bsilica,Bspongin

AnBorganismBthatBcanBmakeBbothBmaleBandBfemaleBgametesBisBknownBasBaB__________________
________BIfBnoBgametesBareBneededBforBreproductionBtheBprocessBisBknownBasB_______________
___________________B-BCORRECTBANSWER-HermaphroditeB-BAsexualBreproduction

WhatBareBtheB"stingingBcells"BfoundBmainlyBonBtentaclesBinBthisBphylum?B____________________
_________BWhatBareBtheBorganellesBcontainedBwithinBtheseBcellsBthatBareBreleasedBlikeBaBharpoo
n?B________________________________________B-BCORRECTBANSWER-CnidocytesB-
BNematodytes



ClassB_______________________BcanBhaveB2BbodyBforms:BaBcylindricalBformBknownBasBaB______
_______________Band/orBaBfreeBfloating,BswimmingBformBthatB(functionsBinBsexualBreproduction)
BisBknownBasBaB_______________________ B-BCORRECTBANSWER-HydrozoaB-BPolypB-BMedusa



BothBpolypsBandBmedusaBhaveBaBsingleBopeningBintoBanBincompleteBdigestiveBsystemBknownBasBth
eB_______________________________________B-BCORRECTBANSWER-GastrovascularBCavity

HavingB2BlayersBcellsB(fromBectodermBandBendodermBonly)BisBknownBasB_____________________
____________.BMesodermBisBneverBdevelopedBinBCnidariaB-BCORRECTBANSWER-Diploblastic

UnlikeBtheBPhylumsBPoriferaB&BCnidaria,BmostBplatyhelminthesBhaveBtheBtypicalBanimalBformation
BofBaBdistinctBheadBknownBasB________________________________, BtheBdevelopmentBofBnervo


usBcontrolBandBsenseBorgansBinBtheBanteriorBendB-BCORRECTBANSWER-Cephalization

FlatwormsBhaveBstructuresBdevelopedBfromBallB3BgermBlayersBmakingBthemBknownBasB_________
______________.BHoweverBflatwormsBareB_______________________BmeaningBthereBisBnoBfluid
BfilledBbodyBcavityBbetweenBectodermBandBendodermBstructuresB-BCORRECTBANSWER-


TriploblasticB-BAcoelomate

TheBincompleteBdigestiveBtractBisBcalledBtheB__________________________________________B(
GVC).BTheBsingleBopeningBservesBasBbothBmouthBandBanusB-BCORRECTBANSWER-
GastrovascularBCavity

PlanariaBbelongBtoBtheBClassB___________________________,BwhichBincludesBnonparasitesBalsoB
knownBasB________________________________________B-BCORRECTBANSWER-TurbellariaB-
BFlatworms



ClassBTrematodaBincludesBparasitesBthatBlookBtriangular,BlikeBtheBendsBofBanBanchorBorBtailBofBwhal
es,BandBareBcalledB______________________________B-BCORRECTBANSWER-Flukes

ClassBCestodaBincludesBribbonlikeBparasitesBknownBasB___________________________________
B-BCORRECTBANSWER-Tapeworms