BIOLl 1108l Finall Examl l Principlesl ofl

BIOLl 1108l Finall Examl –l Principlesl ofl Biologyl IIl (Latestl 2026/l 2027l Update)l Guide|l 100%l Verifiedl Questionsl &l Answersl |l Gradel A

Q:l Wherel didl Homol Sapiensl evolve

Answer:

Africa

Q:l Whyl dol wel thinkl malel Neanderthalsl matedl withl non-Africanl ancestrall Homol sapiens?

Answer:

becausel Neanderthall nuclearl DNAl sequencesl arel presentl inl thel humanl genel pooll andl Neanderthall mtDNAl sequencesl arel not

Q:l Howl canl twol cellsl ofl al complexl multicellularl organisml havel thel samel genome,l butl markedlyl differentl structuresl andl functions?

Answer:

Differentl genesl arel expressedl inl differentl cells

Q:l neotony

Answer:

retentionl ofl juvenilel characteristicl inl anl adult

Q:l Homol naledi 1 / 4

Answer:

hasl handsl andl feetl thatl arel veryl human-likel evenl thoughl hisl pelvisl andl shouldersl arel muchl morel primitive

Q:l cytoskeleton

Answer:

scaffoldingl ofl dynamicl proteins

Q:l Whyl dol mitochondrial andl chloroplastl havel relativelyl smalll genomes?

Answer:

Overl time,l muchl ofl theirl nucleicl acidl hasl migratedl tol thel hostl celll nucleus.

Q:l Howl oldl arel thel fossilsl ofl eukaryotes?

Answer:

1.8l billionl years

Q:l Starvation

Answer:

causesl amoeboidl feedingl cellsl ofl cellularl slimel moldsl tol aggregatel intol al largel multicellularl "slug"

Q:l complexl patternsl ofl genel regulation

Answer:

enabledl eukaryotesl tol evolvel complexl lifel cyclesl andl programsl ofl multicellularl development

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Q:l phagocytosis

Answer:

engulf,l package,l transport,l andl digestl foodl particles

Q:l derivedl cyanobacteria

Answer:

chloroplasts

Q:l Cellsl inl thel interiorl ofl complexl multicellularl organismsl arel ablel tol respondl tol environmentall signalsl through...

Answer:

receptorsl forl signalsl sentl froml exteriorl cellsl thatl relayl informationl aboutl environmentall changes

Q:l Simplel multicellularl eukaryotes

Answer:

-cellsl arel ablel tol adherel tol onel another -cellsl arel capablel ofl al widel rangel ofl functions -thel lossl ofl onel orl morel celll doesn'tl leadl tol thel deathl ofl thel organism

Q:l Thel acquisitionl ofl traitsl necessaryl forl complexl multicellularityl occurredl independentlyl inl plantsl andl animals,l butl tookl placel inl al specificl order.l Inl whatl orderl didl thesel processesl evolve?

Answer:

celll adhesionl molecules,l al mechanisml ofl communication,l bulkl flow

Q:l meristems 3 / 4

Answer:

enablel plantsl tol developl complexl anatomicall structuresl despitel thel factl thatl plantsl canl notl move localizedl regionsl ofl activelyl dividingl cells

Q:l Whatl isl believedl tol bel thel majorl eventl thatl ledl tol thel appearancel ofl largel complexl animalsl onl Earth?

Answer:

increasel inl atmosphericl oxygen

Q:l bulkl transportation

Answer:

thel meansl byl whichl moleculesl movel throughl organismsl atl ratesl beyondl thosel possiblel byl diffusionl acrossl al concentrationl gradient

Q:l gapl junctions

Answer:

animall celll communication

Q:l Forl thel "light"l reactionl tol occur,l anl electronl donorl (_______)l andl anl ultimatel receptorl (________)l arel needed.

Answer:

water,l NADP+

Q:l H2O

Answer:

oxidizedl inl thel photosyntheticl reaction

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