NLN NEX – Science Questions and answers
2025
FibrousHtunic
InHtheHdiagram,HtheHareaHlabeledH2HisHpartHofHwhichHlayerHofHtheHeye?
FibrousHtunicH
SensoryHtunicH
ReticularHtunic
HVascularHtuni
c
SympatheticHnervousHsystem
AfterHplayingHaHstrenousHtennisHmatch,HaHplayerHexperiencesHincreasedHheartHrate,HrapidHbreathing,HandHd
ilatedHpupils.HWhichHbranchHofHtheHnervousHsystemHisHresponsibleHforHtheseHresponses?
AutonomicHnervousHsystemHCentr
alHnervousHsystemHSympatheticHn
ervousHsystemHParasympatheticHn
ervousHsystem
CerebralHCortex
AmnesiaHinHhumansHisHtheHlossHofHmemory.HWhichHofHtheseHpartsHofHtheHbrainHhasHbeenHaffectedHwhenHs
omeoneHisHsufferingHfromHamnesiaHcuasedHbyHheadHtrauma?
MedullaHoblongata
HSpinalHCordHCereb
ellumHCerebralHCor
tex
GastronemiusHandHsoleus
IfHaHpersonHcannotHstandHonHtiptoes,HwhichHmusclesHmayHbeHtooHweak?
RectusHfemorisHandHvastusHmedialisHP
ectoralisHmajorHandHsubclavius
,GastronemiusHandHsoleus
BicepsHfemorisHandHsemimembranosus
IsHwhereHmostHofHtheHcell'sHchemicalHreactionsHtakeHplace
AllHlivingHcellsHcontainHcytoplasm,HwhichHisHimportantHb/cHit...
CarriesHhereditaryHtraitsHP
roducesHprotein
IsHwhereHmostHofHtheHcell'sHchemicalHreactionsHtakeHplaceHCon
trolsHwhatHmovesHinHandHoutHofHtheHcell
FewerHconesHandHaHgreaterHconcentrationHofHrodsHtoHcollectHtheHminimalHlightHforHnightHvision.
MostHvertebratesHhaveHconeHcellsHinHtheirHeyes,HwhichHdistinguishHcolorsHinHdaylight.HTheHrodsHareHmoreHs
ensitiveHtoHlight,HbutHdoHnotHdistinguishHcolors.HIfHaHmamalHisHnocturnal,HitHhasHlikelyHevolvedHtoHhave...
AsHmanyHconesHasHthereHareHrodsHtoHcaptureHtheHcolorsHatHdusk/dawn
AnHabsenceHofHconesHsinceHnocturnalHmammalsHonlyHneedHrodsHtoHseeHblack/whiteHatHnightHFe
werHconesHandHaHgreaterHconcentrationHofHrodsHtoHcollectHtheHminimalHlightHforHnightHvision.HMo
reHconesHthanHrodsHtoHenableHthemHtoHseeHtheHmutedHcolorsHatHnight.
Diffusion
WhithinHaHlivingHcell,HtheHoxygenHfromHaHmixtureHofHoxygenHandHcarbonHdioxideHisHusedHup.HThisHcreate
sHaHconcentrationHgradientHacrossHtheHcellHmembraneHthatHdrawsHinHoxygenHacrossHtheHcellHmembrane
HfromHtheHoutsideHtoHtheHinsideHofHtheHcell.HThisHprocessHisHknownHbyHwhichHofHtheseHterms?
Diffusion
ActiveHtransport
HOsmosis
CellularHrespirationHLymp
hocytes
AsHpartHofHtheHhumanHimmuneHresponse,HwhichHofHtheseHcellsHareHresponsibleHforHproducingHantibodies?
MacrophagesHS
uppressorHcellsH
HelperHcellsHLy
mphocytes
, Atlanto-occipitalHjoint
WhenHaHpersonHnodsHtheirHheadHyes/no,HwhichHjointHallowsHforHthatHmovement?
CoxalHjoin
Atlanto-
occipitalHjointHTemporom
andibularHjointHGlenohum
eralHjoint
CristaHampullaris
WhatHstructureHwithinHtheHareaHlabeledHasHBHcontainsHtheHsensoryHreceptorsHforHdynamicHequilibrium?
MaculaHsacculiHS
piralHorganHCrist
aHampullarisHMa
culaHutriculi
VertebralHcolumn
IfHaHpersonHhasHaHlateralHcurvatureHofHtheHspine,HwhichHanatomicalHstructureHisHaffected?
ThoracicHcageHPe
lvicHgirdleHVerteb
ralHcolumnHPecto
ralHgirdle
NaturalHselection
CharlesHDarwin'sHtheoryHofHevolutionHsuggestsHthatHtheHreasonHforHtheHvariousHdifferencesHbetweenHs
peciesHisHaHresultHof..
TheHuseHorHdisuseHofHbodyHstructuresH
ExposureHtoHmutagenicHagentsHNatur
alHselection
AcquiredHcharacteristics
VasHdeferens
H
2025
FibrousHtunic
InHtheHdiagram,HtheHareaHlabeledH2HisHpartHofHwhichHlayerHofHtheHeye?
FibrousHtunicH
SensoryHtunicH
ReticularHtunic
HVascularHtuni
c
SympatheticHnervousHsystem
AfterHplayingHaHstrenousHtennisHmatch,HaHplayerHexperiencesHincreasedHheartHrate,HrapidHbreathing,HandHd
ilatedHpupils.HWhichHbranchHofHtheHnervousHsystemHisHresponsibleHforHtheseHresponses?
AutonomicHnervousHsystemHCentr
alHnervousHsystemHSympatheticHn
ervousHsystemHParasympatheticHn
ervousHsystem
CerebralHCortex
AmnesiaHinHhumansHisHtheHlossHofHmemory.HWhichHofHtheseHpartsHofHtheHbrainHhasHbeenHaffectedHwhenHs
omeoneHisHsufferingHfromHamnesiaHcuasedHbyHheadHtrauma?
MedullaHoblongata
HSpinalHCordHCereb
ellumHCerebralHCor
tex
GastronemiusHandHsoleus
IfHaHpersonHcannotHstandHonHtiptoes,HwhichHmusclesHmayHbeHtooHweak?
RectusHfemorisHandHvastusHmedialisHP
ectoralisHmajorHandHsubclavius
,GastronemiusHandHsoleus
BicepsHfemorisHandHsemimembranosus
IsHwhereHmostHofHtheHcell'sHchemicalHreactionsHtakeHplace
AllHlivingHcellsHcontainHcytoplasm,HwhichHisHimportantHb/cHit...
CarriesHhereditaryHtraitsHP
roducesHprotein
IsHwhereHmostHofHtheHcell'sHchemicalHreactionsHtakeHplaceHCon
trolsHwhatHmovesHinHandHoutHofHtheHcell
FewerHconesHandHaHgreaterHconcentrationHofHrodsHtoHcollectHtheHminimalHlightHforHnightHvision.
MostHvertebratesHhaveHconeHcellsHinHtheirHeyes,HwhichHdistinguishHcolorsHinHdaylight.HTheHrodsHareHmoreHs
ensitiveHtoHlight,HbutHdoHnotHdistinguishHcolors.HIfHaHmamalHisHnocturnal,HitHhasHlikelyHevolvedHtoHhave...
AsHmanyHconesHasHthereHareHrodsHtoHcaptureHtheHcolorsHatHdusk/dawn
AnHabsenceHofHconesHsinceHnocturnalHmammalsHonlyHneedHrodsHtoHseeHblack/whiteHatHnightHFe
werHconesHandHaHgreaterHconcentrationHofHrodsHtoHcollectHtheHminimalHlightHforHnightHvision.HMo
reHconesHthanHrodsHtoHenableHthemHtoHseeHtheHmutedHcolorsHatHnight.
Diffusion
WhithinHaHlivingHcell,HtheHoxygenHfromHaHmixtureHofHoxygenHandHcarbonHdioxideHisHusedHup.HThisHcreate
sHaHconcentrationHgradientHacrossHtheHcellHmembraneHthatHdrawsHinHoxygenHacrossHtheHcellHmembrane
HfromHtheHoutsideHtoHtheHinsideHofHtheHcell.HThisHprocessHisHknownHbyHwhichHofHtheseHterms?
Diffusion
ActiveHtransport
HOsmosis
CellularHrespirationHLymp
hocytes
AsHpartHofHtheHhumanHimmuneHresponse,HwhichHofHtheseHcellsHareHresponsibleHforHproducingHantibodies?
MacrophagesHS
uppressorHcellsH
HelperHcellsHLy
mphocytes
, Atlanto-occipitalHjoint
WhenHaHpersonHnodsHtheirHheadHyes/no,HwhichHjointHallowsHforHthatHmovement?
CoxalHjoin
Atlanto-
occipitalHjointHTemporom
andibularHjointHGlenohum
eralHjoint
CristaHampullaris
WhatHstructureHwithinHtheHareaHlabeledHasHBHcontainsHtheHsensoryHreceptorsHforHdynamicHequilibrium?
MaculaHsacculiHS
piralHorganHCrist
aHampullarisHMa
culaHutriculi
VertebralHcolumn
IfHaHpersonHhasHaHlateralHcurvatureHofHtheHspine,HwhichHanatomicalHstructureHisHaffected?
ThoracicHcageHPe
lvicHgirdleHVerteb
ralHcolumnHPecto
ralHgirdle
NaturalHselection
CharlesHDarwin'sHtheoryHofHevolutionHsuggestsHthatHtheHreasonHforHtheHvariousHdifferencesHbetweenHs
peciesHisHaHresultHof..
TheHuseHorHdisuseHofHbodyHstructuresH
ExposureHtoHmutagenicHagentsHNatur
alHselection
AcquiredHcharacteristics
VasHdeferens
H