Download Evidence for Evolution Web Quest STUDENT

Name: ____________________________________________ Date: ______________________________
EVIDENCE FOR EVOLUTION Web Quest
Go to: http://evolution.berkeley.edu/evolibrary/article/lines_01"
1. Go%to%Fossil%Evidence%
Fossil"evidence"clearly"shows"that"__________________________________________________________.""
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What"did"“tongue"stones”"actually"end"up"being?"___________________________.""
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Iguanodon
The"discover"of"iguanodon"teeth"sent"a"powerful"message"that"__________________________________"
_____________________________________________________________________________________."
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Each"new"fossil"contains"addiKonal"clues"that"______________________________________________"and"
help"us"to"_______________________________________.""
Examples"Include:""
• IndicaKon"of"_______________________"
• With"which"exKnct"organism"did"the"ammonite"fossil"have"an"interacKon"with?"And"how"do"we"
©"2015"Vanessa"Jason"(“Biology"Roots”)"
know"of"these"interacKons?"______________________________________________________"
_____________________________________________________________________________.""
• Clues"at"the"________________"level""
• What"can"we"tell"from"the"fossilized"bone"of"the"duck"bill"dinosaur"Maiasaura?"______________"
_____________________________________________________________________________."
Click"on"the"“next”"icon"(TransiKonal"Forms)"
2.%Transi5onal%Forms"
___________"or"__________________"that"show"the"__________________"states""between"an"
____________"form"and"that"of"its"__________________"are"referred"to"as"_________________"
____________.""
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How"do"we"know"that'Pakicetus'is"related"to"whales"and"dolphins?"_______________________________"
____________________________________________________________.""
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What"was"the"transiKonal"form"between"Pakicetus"and"modern"day"whales?"Why"does"this"make"sense"as"
far"as"nostril"locaKon?"___________________________________________________________________"
" ________________________________________________________________
" ________________________________________________________________.""
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Pakicetus
How"does"the"diagram"depicKng"the"evoluKon"of"the"eohippus"into"the""modern"day"horse"include"
transiKonal"forms?"______________________________________________________________________"
©"2015"Vanessa"Jason"(“Biology"Roots”)"
_______________________________________________________________________________________
____________________________________.""
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Click"on"the"“next”"icon"(Homologies)"
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Copyright 2015 Vanessa Jason (“Biology Roots”). All rights reserved.
3.%Homologies%
EvoluKonary"theory"predicts"that"organisms"will"___________"______________"that"are"derived"from"
____________"_____________."Similar"characterisKcs"due"to"relatedness"are"known"as"________________."
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Homologies"can"be"revealed"by:""
• Comparing"the"________________"of"different"living"things."
• Looking"at"______________"similariKes"and"differences.""
• Studying"___________________"development."
• Studying"______________"_____________"within"individual"organisms.""
Even"though"four"different"types"of"leaves"pictured"are"very"different,"why"are"they"considered"homologies"
(homologous"structures)?"_________________________________________________________________"
_______________________________________________________________________.""
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Why"are"the"forelimbs"of"frogs,"birds,"rabbits"and"lizards"considered"homologous?"_____________________"
____________________________________________________________________________________.""
" Click"on"the"“next”"icon"(Homologies:"Anatomy)"
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©"2015"Vanessa"Jason"(“Biology"Roots”)"
4.%Homologies:%Anatomy"
Click"on"the"link"that"says"“vesKgial”"to"get"a"popXup"definiKon."
VesKgial"structure:"a"______________"that"an"organism"______________"from"its"_____________,"but"that"
is"now"_______"____________"and"______________"than"in"the"ancestor."Usually,"____________"structures"
are"formed"when"a"lineage"experiences"a"different"set"of"____________"___________"than"its"ancestors,"
and"selecKon"to"maintain"the"elaboraKon"and"funcKon"of"the"feature"_____"or"is"___________"__________.""
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Why"are"“dewclaws”"considered"vesKgial"structures?"____________________________________________"
_______________________________________________________________________________________."
"Click"on"the"“next”"icon"
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5.%Homologies:%Compara5ve%Anatomy%%
Organisms"that"are"closely"related"to"each"other"share"many"_______________.""
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Dewclaw
How"are"whales"and"hummingbirds"related?"___________________________________________________"
____________________________________________________________________________________.""
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6.%Homologies:%Developmental%Biology%
During"some"stages"of"development,"organisms"exhibit"_____________"features"in"__________"or"
_____________"form."
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Name"two"reasons"why"we"can"tell"that"snakes"had"ancestors"with"hind"legs:"_________________________"
_____________________________________________________________.""
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©"2015"Vanessa"Jason"(“Biology"Roots”)"
Baleen"whales"(toothless"whales)"possess"__________"in"the"early"________"stage"and"lose"them"before"
birth;"this"provides"evidence"of"____________"_____________"with"toothed"whales"and"other"mammals.""
Copyright 2015 Vanessa Jason (“Biology Roots”). All rights reserved.
7.%Homologies:%Cellular%and%Molecular%Evidence%
The"Cellular"Level"
Are"plant"and"animal"cells"more"alike"than"they"are"differentX"or"–"more"different"than"they"are"alike?"Explain"
your"reasoning:"__________________________________________________________________________"
________________________________________________________________________________________
________________________________________________________________________________.""
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The"Molecular"Level"
Do"humans"share"DNA"with"roundworms?"What"might"this"suggest?"______________________________"
_______________________________________________________________________.""
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The"DNA"code"is"a"homology"that"___________________________________________________________."
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8.%Chronology%
The"age"of"the"Earth"and"its"inhabitants"have"been"determined"through"two"lines"of"evidence:"
1.%___________%_________:%places"fossils"in"a"temporal"sequence"by"noKng"their"__________"in"_________"
of"__________,"known"as"_________.""
©"2015"Vanessa"Jason"(“Biology"Roots”)"
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Using"the"diagram"at"right,"label"which"layer"would"be"the"oldest,"and"
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which"layer"would"be"the"youngest.""
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2."__________"daKng:"relies"on"the"_________"of"______________"elements"
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Which"of"the"two"methods"gives"us"specific"ages"of"fossils"and"rocks?""
_____________________________"
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9.%GeographyK%The"______________"of"living"things"on"the"globe"provides"informaKon"about"both"the"past"
histories"and"the"___________"of"the"Earth.""
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Explain"the"distribuKon"of"Marsupials"from"their"place"of"origin"to"their"current"locaKons:"_______________"
________________________________________________________________________________________
______________________________________________________________________________.""
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10."Ar5ficial%Selec5onK%Though"all"domesKcated"dog"species"are"direct"descendants"of"wolves,"it"is"nearly"
impossible"to"tell"due"to"the"arKficial"selecKon"that"humans"have"performed"(that’s"why"German"Shepherds,"
©"2015"Vanessa"Jason"(“Biology"Roots”)"
Bulldogs,"Chihuahuas,"etc."are"so"different.""What"does"arKficial"selecKon"tell"us"about"selecKon?"_________"
________________________________________________________________________________________
_______________________________________________________________________________________.""
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11.%EcologyK%Give"an"example"of"how"ecology"(specifically"the"environment"in"which"a"species"lives)"can"
change"a"species:"_________________________________________________________________________"
________________________________________________________________________________________
____________________________________________."%
Click"on"the"“next”"icon"(Experiments)"
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12.%Experiments%%
Guppies"in"Trinidad"
In"a"populaKon"of"guppies"found"in"Trinidad,"female"guppies"prefer"colorful"males,"however,"colorful"males"
were"also"easily"seen"by"____________.""
Some"parts"of"the"stream"where"the"guppies"lived"had"fewer"predators"than"others."The"parts"that"had"
fewer"predators"had"(circle"one)"["more"|"less"]"colorful"males."Males"in"locaKons"with"more"predators"were"
(circle"one)"["more"|"less"]"colorful.""
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What"happened"when"Dr."John"Endler"transferred"predatory"fish"to"the"regions"with"more"colorful"male"
guppies?"______________________________________________________________________________"
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This"demonstrates"that"persistent"___________"within"a"populaKon"provides"the"raw"material"for"rapid"
___________"when"______________"____________"________.""
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©"2015"Vanessa"Jason"(“Biology"Roots”)"
13."Nested%Hierarchies%
Nested"hierarchies"is"a"term"biologists"use"to"describe"how"groups"of"related"organisms"share"suites"of"
___________"____________"and"the"number"of"shared"traits"__________"with"______________.""
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In"the"diagram"(cladogram),"which"is"most"closely"related"to"snakes?"_________________"
Birds?"____________________"
Chimpanzees?"______________"
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Are"snakes"more"closely"related"to"birds,"or"whales?"______________"
Are"crocodiles"more"closely"related"to"lizards"or"camels?"_______________"
©"2015"Vanessa"Jason"(“Biology"Roots”)"
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In"this"diagram,"what"determines"how"closely"related"an"organism"is?"_______________________________"
_______________________________________________________________________________________.""
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Copyright 2015 Vanessa Jason (“Biology Roots”). All rights reserved.