UNIT 3 STUDY GUIDE QUESTIONS
AND ANSWERS
Who 7nbecame 7nan 7nambassador 7nfor 7nthe 7ntrees 7nand 7ntraveled 7nwith 7nforest
7nhandbooks 7nall 7nover? 7n- 7nTreetop 7nBarbie
How 7ndo 7nplants 7nthat 7ngrow 7non 7nthe 7ntrees 7nget 7ntheir 7nnutrients? 7nThe
7nspeaker 7nhas 7na 7nunique 7nfamily, 7nthey 7nall 7nhave 7n_______ 7nnamed 7nafter
7nthem. 7n- 7nAnts
Many 7ninteracting 7nspecies 7nthat 7nlive 7nin 7nthe 7nsame 7narea 7n- 7ncommunity
Community 7nand 7nthe 7nabiotic 7nmaterial 7nwith 7nwhich 7nits 7nmembers 7ninteract 7n-
7necosystems
Specific 7nenvironment 7nin 7nwhich 7nan 7norganism 7nlives 7n- 7nhabitat
Number 7nof 7nindividuals 7nwithin 7na 7npopulation 7nper 7nunit 7narea 7n- 7npopulation
7ndensity
The 7nprocess 7nby 7nwhich 7nunrelated 7nspecies 7nacquire 7nsimilar 7ntraits 7n-
7nconvergent 7nevolution
Species 7noccurring 7nin 7nonly 7none 7narea 7n- 7nendemic
A 7ngroup 7nof 7nindividuals 7nof 7na 7nspecies 7nthat 7nlive 7nin 7na 7nparticular 7narea 7n-
7npopulation
Extinction 7nis 7n________. 7n- 7na 7nnatural 7nprocess
Which 7nof 7nthe 7nfollowing 7nis 7ntrue? 7n- 7nSpecies 7non 7nEarth 7ntoday 7nare 7njust 7na
7nfraction 7nof 7nall 7nspecies 7nthat 7never 7nlived.
A 7npopulation 7nis 7n________. 7n- 7na 7ngroup 7nof 7nindividuals 7nof 7na 7nsingle
7nspecies 7nthat 7nlive 7nand 7ninteract 7nin 7none 7narea
Endemic 7nspecies 7n________. 7n- 7nare 7nfound 7nonly 7nin 7none 7nplace 7non 7nthe
7nplanet
Mutation 7nand 7n________ 7nare 7nthe 7nkey 7nmechanisms 7nthat 7ngenerate 7nand
7nmaintain 7ngenetic 7nvariation 7namong 7nindividuals 7nin 7nmost 7npopulations. 7n-
7nsexual 7nreproduction
Heavy 7nrains 7nand 7nmudslides 7ncause 7na 7nriver 7nto 7nchange 7ncourse, 7nisolating
7ntwo 7ngroups 7nof 7nlizards 7nfrom 7none 7nanother. 7nIf 7nthey 7nremain 7nisolated 7nfor
7na 7nlong 7nperiod 7nof 7ntime, 7n________. 7n- 7nthe 7ngroups 7nwill 7nprobably 7ndiverge
7ngenetically, 7nand 7nspeciation 7nmay 7noccur
, Dog 7nbreeds 7nare 7na 7nclassic 7nexample 7nof 7nartificial 7nselection. 7nWhich 7nof 7nthe
7nfollowing 7nis 7nanother 7nexample 7nof 7nartificial 7nselection? 7n- 7nbreeding 7nwild
7ncabbage 7nto 7ncreate 7nbroccoli 7nand 7ncauliflower
You 7nare 7nan 7necologist 7nresearching 7ndivergent 7nevolution 7non 7nthe 7nGalápagos
7nIslands. 7nWhich 7nof 7nthe 7nfollowing 7nmight 7nyou 7nbe 7nstudying? 7n- 7nthe
7nprocesses 7nby 7nwhich 7nthe 7nvarious 7nspecies 7nof 7nfinches 7non 7nthe 7nislands
7ndiverged 7nfrom 7na 7ncommon 7nancestor
Which 7nof 7nthe 7nfollowing 7nis 7nan 7nexample 7nof 7nan 7necosystem?
a 7ncolony 7nof 7nleafcutter 7nants, 7nthe 7nleaves 7nthey 7nharvest, 7nthe 7nfungi 7nthat
7nthey 7ncultivate 7nand 7ntend 7nto, 7nand 7nthe 7nsoil 7nnutrients 7nand 7nmoisture
7nneeded 7nfor 7ntheir 7ngarden
a 7ncolony 7nof 7nleafcutter 7nants 7nliving 7nin 7na 7nforest
a 7ncolony 7nof 7nleafcutter 7nants, 7nthe 7nleaves 7nthey 7nharvest, 7nand 7nthe 7nfungi
7nthat 7nthey 7ncultivate 7nand 7ntend 7nto
a 7ncolony 7nof 7nleafcutter 7nants 7nand 7nthe 7nleaves 7nthey 7nharvest 7nfor 7ntheir
7nfungal 7ngarden
These 7nare 7nall 7nexamples 7nof 7necosystems. 7n- 7nThese 7nare 7nall 7nexamples 7nof
7necosystems.
Which 7nof 7nthe 7nfollowing 7ndescriptions 7nof 7na 7nhummingbird 7nbest 7ndescribes
7nits 7nniche? 7n- 7nis 7na 7nnectivore
A 7ncoyote 7ncan 7nalter 7nits 7ndiet 7nto 7nmatch 7nseasonal 7nabundance 7nof 7nplants,
7nfruits, 7nor 7nsmall 7nanimals 7nand 7nwould 7ntherefore 7nbe 7nconsidered 7n________.
7n- 7na 7ngeneralist
A 7nniche 7nspecialist 7nis 7n________. 7n- 7nmore 7nlikely 7nto 7ngo 7nextinct 7nthan 7na
7nniche 7ngeneralist
High 7npopulation 7ndensity 7ncan 7n________. 7n- 7nincrease 7nthe 7nincidence 7nof
7ndisease 7ntransmission
Unregulated 7npopulations 7ntend 7nto 7nincrease 7nby 7n________. 7n- 7nexponential
7ngrowth
The 7ncarrying 7ncapacity 7nis 7nthe 7n________. 7n- 7nmaximum 7nsustainable
7npopulation 7nthat 7na 7ngiven 7nenvironment 7ncan 7nsupport
Which 7nof 7nthe 7nfollowing 7nscenarios 7nbest 7ndescribes 7na 7ndensity-dependent
7nfactor 7nlimiting 7npopulation 7ngrowth? 7n- 7nA 7nparticularly 7ndry 7nsummer 7nshrinks
7nand 7ndries 7nup 7nmany 7nponds 7nin 7ncentral 7nCanada, 7ncausing 7nincreased
7naggression 7nand 7ncompetition 7nfor 7nlimited 7nnest 7nsites 7namong 7nfemale
7ncommon 7ngoldeneyes 7n(ducks).
AND ANSWERS
Who 7nbecame 7nan 7nambassador 7nfor 7nthe 7ntrees 7nand 7ntraveled 7nwith 7nforest
7nhandbooks 7nall 7nover? 7n- 7nTreetop 7nBarbie
How 7ndo 7nplants 7nthat 7ngrow 7non 7nthe 7ntrees 7nget 7ntheir 7nnutrients? 7nThe
7nspeaker 7nhas 7na 7nunique 7nfamily, 7nthey 7nall 7nhave 7n_______ 7nnamed 7nafter
7nthem. 7n- 7nAnts
Many 7ninteracting 7nspecies 7nthat 7nlive 7nin 7nthe 7nsame 7narea 7n- 7ncommunity
Community 7nand 7nthe 7nabiotic 7nmaterial 7nwith 7nwhich 7nits 7nmembers 7ninteract 7n-
7necosystems
Specific 7nenvironment 7nin 7nwhich 7nan 7norganism 7nlives 7n- 7nhabitat
Number 7nof 7nindividuals 7nwithin 7na 7npopulation 7nper 7nunit 7narea 7n- 7npopulation
7ndensity
The 7nprocess 7nby 7nwhich 7nunrelated 7nspecies 7nacquire 7nsimilar 7ntraits 7n-
7nconvergent 7nevolution
Species 7noccurring 7nin 7nonly 7none 7narea 7n- 7nendemic
A 7ngroup 7nof 7nindividuals 7nof 7na 7nspecies 7nthat 7nlive 7nin 7na 7nparticular 7narea 7n-
7npopulation
Extinction 7nis 7n________. 7n- 7na 7nnatural 7nprocess
Which 7nof 7nthe 7nfollowing 7nis 7ntrue? 7n- 7nSpecies 7non 7nEarth 7ntoday 7nare 7njust 7na
7nfraction 7nof 7nall 7nspecies 7nthat 7never 7nlived.
A 7npopulation 7nis 7n________. 7n- 7na 7ngroup 7nof 7nindividuals 7nof 7na 7nsingle
7nspecies 7nthat 7nlive 7nand 7ninteract 7nin 7none 7narea
Endemic 7nspecies 7n________. 7n- 7nare 7nfound 7nonly 7nin 7none 7nplace 7non 7nthe
7nplanet
Mutation 7nand 7n________ 7nare 7nthe 7nkey 7nmechanisms 7nthat 7ngenerate 7nand
7nmaintain 7ngenetic 7nvariation 7namong 7nindividuals 7nin 7nmost 7npopulations. 7n-
7nsexual 7nreproduction
Heavy 7nrains 7nand 7nmudslides 7ncause 7na 7nriver 7nto 7nchange 7ncourse, 7nisolating
7ntwo 7ngroups 7nof 7nlizards 7nfrom 7none 7nanother. 7nIf 7nthey 7nremain 7nisolated 7nfor
7na 7nlong 7nperiod 7nof 7ntime, 7n________. 7n- 7nthe 7ngroups 7nwill 7nprobably 7ndiverge
7ngenetically, 7nand 7nspeciation 7nmay 7noccur
, Dog 7nbreeds 7nare 7na 7nclassic 7nexample 7nof 7nartificial 7nselection. 7nWhich 7nof 7nthe
7nfollowing 7nis 7nanother 7nexample 7nof 7nartificial 7nselection? 7n- 7nbreeding 7nwild
7ncabbage 7nto 7ncreate 7nbroccoli 7nand 7ncauliflower
You 7nare 7nan 7necologist 7nresearching 7ndivergent 7nevolution 7non 7nthe 7nGalápagos
7nIslands. 7nWhich 7nof 7nthe 7nfollowing 7nmight 7nyou 7nbe 7nstudying? 7n- 7nthe
7nprocesses 7nby 7nwhich 7nthe 7nvarious 7nspecies 7nof 7nfinches 7non 7nthe 7nislands
7ndiverged 7nfrom 7na 7ncommon 7nancestor
Which 7nof 7nthe 7nfollowing 7nis 7nan 7nexample 7nof 7nan 7necosystem?
a 7ncolony 7nof 7nleafcutter 7nants, 7nthe 7nleaves 7nthey 7nharvest, 7nthe 7nfungi 7nthat
7nthey 7ncultivate 7nand 7ntend 7nto, 7nand 7nthe 7nsoil 7nnutrients 7nand 7nmoisture
7nneeded 7nfor 7ntheir 7ngarden
a 7ncolony 7nof 7nleafcutter 7nants 7nliving 7nin 7na 7nforest
a 7ncolony 7nof 7nleafcutter 7nants, 7nthe 7nleaves 7nthey 7nharvest, 7nand 7nthe 7nfungi
7nthat 7nthey 7ncultivate 7nand 7ntend 7nto
a 7ncolony 7nof 7nleafcutter 7nants 7nand 7nthe 7nleaves 7nthey 7nharvest 7nfor 7ntheir
7nfungal 7ngarden
These 7nare 7nall 7nexamples 7nof 7necosystems. 7n- 7nThese 7nare 7nall 7nexamples 7nof
7necosystems.
Which 7nof 7nthe 7nfollowing 7ndescriptions 7nof 7na 7nhummingbird 7nbest 7ndescribes
7nits 7nniche? 7n- 7nis 7na 7nnectivore
A 7ncoyote 7ncan 7nalter 7nits 7ndiet 7nto 7nmatch 7nseasonal 7nabundance 7nof 7nplants,
7nfruits, 7nor 7nsmall 7nanimals 7nand 7nwould 7ntherefore 7nbe 7nconsidered 7n________.
7n- 7na 7ngeneralist
A 7nniche 7nspecialist 7nis 7n________. 7n- 7nmore 7nlikely 7nto 7ngo 7nextinct 7nthan 7na
7nniche 7ngeneralist
High 7npopulation 7ndensity 7ncan 7n________. 7n- 7nincrease 7nthe 7nincidence 7nof
7ndisease 7ntransmission
Unregulated 7npopulations 7ntend 7nto 7nincrease 7nby 7n________. 7n- 7nexponential
7ngrowth
The 7ncarrying 7ncapacity 7nis 7nthe 7n________. 7n- 7nmaximum 7nsustainable
7npopulation 7nthat 7na 7ngiven 7nenvironment 7ncan 7nsupport
Which 7nof 7nthe 7nfollowing 7nscenarios 7nbest 7ndescribes 7na 7ndensity-dependent
7nfactor 7nlimiting 7npopulation 7ngrowth? 7n- 7nA 7nparticularly 7ndry 7nsummer 7nshrinks
7nand 7ndries 7nup 7nmany 7nponds 7nin 7ncentral 7nCanada, 7ncausing 7nincreased
7naggression 7nand 7ncompetition 7nfor 7nlimited 7nnest 7nsites 7namong 7nfemale
7ncommon 7ngoldeneyes 7n(ducks).
