Biology 104 Unit 1 Exam questions with
complete solution 2024
Ecology k- kANS✓✓-the kstudy kof kthe kinteractions kof korganisms kwith kother
korganisms kand kwith kthe kphysical kenvironment
habitat k- kANS✓✓-the kplace kwhere kan korganism kexists
population k- kANS✓✓-a kgroup kof kthe ksame kspecies koccupying ka kcertain karea
community k- kANS✓✓-all kpopulations kat kone klocale k(e.g., ka kcoral kreef
kpopulation)
ecosystem k- kANS✓✓-m kcontains kthe kcommunity korganisms kand kabiotic
kfactors
biosphere k- kANS✓✓-the klayer kon kthe kearth kwhere kliving korganisms kcan klive
Demography k- kANS✓✓-the kstatistical kstudy kof ka kpopulation, ke.g., kits kdensity,
kdistribution, krate kof kgrowth
population kdensity k- kANS✓✓-the knumber kof kindividuals kper kunit karea.
population kdistribution k- kANS✓✓-the kpattern kof kdispersal kof kindividuals
kacross kan karea
Resources k- kANS✓✓-nonliving kand kliving kcomponents kof kan kenvironment
kthat ksupport kliving korganisms.
Limiting kfactors k- kANS✓✓-those kenvironmental kaspects kthat kparticularly
kdetermine kwhere kan korganism klives.
Examples kof kLimiting kFactors k- kANS✓✓-Such kfactors kinclude koxygen ksupply,
klight kavailability, kspace, ktemperature, kand kprecipitation kamounts
Example kof kBiotic kFactor k- kANS✓✓-Biotic kfactors kcan kbe killustrated kby kred
kkangaroos kthat kare klimited kto kinland kAustralia kby kthe kgrasses kthat kgrow
kthere.
, terms kused kto kdescribe kpatterns kof kdistribution. k- kANS✓✓-Clumped, krandom,
kand kuniform
rate kof knatural kincrease k(r) k- kANS✓✓-dependent kon kthe knumber kof
kindividuals kborn kevery kyear kand kthe knumber kof kindividuals kthat kdie kevery
kyear.
biotic kpotential k- kANS✓✓-The khighest kpossible krate kof knatural kincrease kfor ka
kpopulation kwhen kresources kare kunlimited
Biotic kpotential kdepends kon k4 kthings: k- kANS✓✓-a. k# kof koffspring kper
kreproduction k
b. kChances kof ksurvival kuntil kage kof kreproduction k
c. kHow koften keach kindividual kreproduces k
d. kAge kat kwhich kreproduction kbegins
cohort k- kANS✓✓-all kmembers kof ka kpopulation kborn kat kthe ksame ktime.
Survivorship k- kANS✓✓-the kprobability kof knewborn kindividuals kof ka kcohort
ksurviving kto kparticular kages.
A ksurvivorship kcurve kis kobtained kby k- kANS✓✓-plotting kthe knumber kof
kindividuals ksurviving kat keach kage, kis kcharacteristic kof keach kspecies.
3 kAge kDistribution kGroups: k- kANS✓✓-prereproductive, kreproductive, kand
kpostreproductive
Age kstructure kdiagrams k- kANS✓✓-used kto kdetermine kpast kand kfuture khistory
kof ka kpopulation.
The k2 kPopulation kGrowth kModels: k- kANS✓✓-Exponential kGrowth k& kLogistic
kGrowth
Exponential kGrowth k- kANS✓✓-the knumber kof kindividuals kadded keach
kgeneration kincreases kas kthe ktotal knumber kof kfemales kincreases.
Logistic kGrowth k- kANS✓✓-When kgrowth kencounters kenvironmental kresistance
density-independent kfactors k- kANS✓✓-Abiotic kfactors kthat kregulate
kpopulation. k(Tornados, khurricanes, ktsunami, kforest kfires, ketc...)
density-independent kfactors kshow k____ k____________ kwith kthe ksize kof kthe
kpopulation. k- kANS✓✓-no kcorrelation
complete solution 2024
Ecology k- kANS✓✓-the kstudy kof kthe kinteractions kof korganisms kwith kother
korganisms kand kwith kthe kphysical kenvironment
habitat k- kANS✓✓-the kplace kwhere kan korganism kexists
population k- kANS✓✓-a kgroup kof kthe ksame kspecies koccupying ka kcertain karea
community k- kANS✓✓-all kpopulations kat kone klocale k(e.g., ka kcoral kreef
kpopulation)
ecosystem k- kANS✓✓-m kcontains kthe kcommunity korganisms kand kabiotic
kfactors
biosphere k- kANS✓✓-the klayer kon kthe kearth kwhere kliving korganisms kcan klive
Demography k- kANS✓✓-the kstatistical kstudy kof ka kpopulation, ke.g., kits kdensity,
kdistribution, krate kof kgrowth
population kdensity k- kANS✓✓-the knumber kof kindividuals kper kunit karea.
population kdistribution k- kANS✓✓-the kpattern kof kdispersal kof kindividuals
kacross kan karea
Resources k- kANS✓✓-nonliving kand kliving kcomponents kof kan kenvironment
kthat ksupport kliving korganisms.
Limiting kfactors k- kANS✓✓-those kenvironmental kaspects kthat kparticularly
kdetermine kwhere kan korganism klives.
Examples kof kLimiting kFactors k- kANS✓✓-Such kfactors kinclude koxygen ksupply,
klight kavailability, kspace, ktemperature, kand kprecipitation kamounts
Example kof kBiotic kFactor k- kANS✓✓-Biotic kfactors kcan kbe killustrated kby kred
kkangaroos kthat kare klimited kto kinland kAustralia kby kthe kgrasses kthat kgrow
kthere.
, terms kused kto kdescribe kpatterns kof kdistribution. k- kANS✓✓-Clumped, krandom,
kand kuniform
rate kof knatural kincrease k(r) k- kANS✓✓-dependent kon kthe knumber kof
kindividuals kborn kevery kyear kand kthe knumber kof kindividuals kthat kdie kevery
kyear.
biotic kpotential k- kANS✓✓-The khighest kpossible krate kof knatural kincrease kfor ka
kpopulation kwhen kresources kare kunlimited
Biotic kpotential kdepends kon k4 kthings: k- kANS✓✓-a. k# kof koffspring kper
kreproduction k
b. kChances kof ksurvival kuntil kage kof kreproduction k
c. kHow koften keach kindividual kreproduces k
d. kAge kat kwhich kreproduction kbegins
cohort k- kANS✓✓-all kmembers kof ka kpopulation kborn kat kthe ksame ktime.
Survivorship k- kANS✓✓-the kprobability kof knewborn kindividuals kof ka kcohort
ksurviving kto kparticular kages.
A ksurvivorship kcurve kis kobtained kby k- kANS✓✓-plotting kthe knumber kof
kindividuals ksurviving kat keach kage, kis kcharacteristic kof keach kspecies.
3 kAge kDistribution kGroups: k- kANS✓✓-prereproductive, kreproductive, kand
kpostreproductive
Age kstructure kdiagrams k- kANS✓✓-used kto kdetermine kpast kand kfuture khistory
kof ka kpopulation.
The k2 kPopulation kGrowth kModels: k- kANS✓✓-Exponential kGrowth k& kLogistic
kGrowth
Exponential kGrowth k- kANS✓✓-the knumber kof kindividuals kadded keach
kgeneration kincreases kas kthe ktotal knumber kof kfemales kincreases.
Logistic kGrowth k- kANS✓✓-When kgrowth kencounters kenvironmental kresistance
density-independent kfactors k- kANS✓✓-Abiotic kfactors kthat kregulate
kpopulation. k(Tornados, khurricanes, ktsunami, kforest kfires, ketc...)
density-independent kfactors kshow k____ k____________ kwith kthe ksize kof kthe
kpopulation. k- kANS✓✓-no kcorrelation
